50+ Liter Backpack
A technical climbing pack large enough to carry personal gear, layers, food, water, and a share of group equipment. You will not need a separate summit pack.

4 Days
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Mountaineering
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$1,980
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$400
Deposit
|
Beginner
A four-day alpine climb of Mt. Shuksan via the Sulphide Glacier, combining moderate glacier travel with an exposed, committing summit pyramid.
Day-by-day program overview.
Fitness, experience, and preparation.
Gear requirements for this program.
Meals and nutrition on the mountain.
Getting there and local logistics.
Booking, cancellations, and requirements.
Common questions, direct answers.
What climbers are saying.
Mt. Shuksan is one of the most recognizable and sought-after peaks in the North Cascades, known for its dramatic profile and classic alpine lines.
The Sulphide Glacier route offers moderate glacier travel and a straightforward structure that makes it a strong first alpine objective without removing real mountain complexity.
From forest approach to glacier camp to an exposed summit pyramid, this climb delivers a full North Cascades alpine experience shaped by conditions and judgment.
I loved the perfect pace, the variety of new skills I picked up, the incredible guidance from the team, and the constant encouragement along the way. This was my first time mountaineering and it left such an incredible mark on my heart that I will definitely be leaning in more to these skills in the future.
Meagan L.
Mt. Shuksan via the Sulphide Glacier is a complete North Cascades alpine experience. The climb progresses naturally from forested approach to glaciated basecamp to an airy, technical summit, offering real commitment and varied terrain on one of Washington's most recognized peaks. This is not a walk-up. The Sulphide Glacier route demands focused movement, sound judgment, and the ability to perform on exposed terrain when conditions and timing align.
Climbers establish camp on the glacier itself, creating a base for skills review and summit preparation in true alpine context. Cramponing, ice axe technique, and roped glacier travel are practiced directly outside camp before the team moves toward the summit. The climb involves moderate glacier travel followed by steeper, more exposed climbing on the summit pyramid, where the terrain becomes committing and the surrounding North Cascades come into full view.
This route is well-suited for climbers ready for their first serious Cascades objective or experienced mountaineers seeking a classic alpine summit without extended expedition logistics.
RMI guides have been climbing Mt. Shuksan via the Sulphide Glacier for decades, and that familiarity shows in how the program operates. Guides know the approach, the glacier's character across different seasons, and how conditions on the summit pyramid shift with weather and snowpack. This isn't theoretical knowledge. It's the result of cumulative time spent managing teams, assessing route conditions, and making real-time decisions on this specific terrain.
“Watching them problem solve and communicate, and use their skills and knowledge, was an amazing learning experience.” — Karen S.
The Sulphide Glacier route demands judgment as much as technical skill. Guides continuously assess crevasse patterns, snow stability, and summit conditions to determine appropriate timing, pacing, and objectives. RMI's approach prioritizes risk management and client security through disciplined decision-making, not optimism. Every guide holds Wilderness First Responder and technical rescue certification; lead guides hold U.S. Level 2 avalanche certification. Our guides carry comprehensive communication and rescue equipment on every program.
This climb benefits directly from RMI's structured systems for North Cascades programs: established logistics, proven camp management, and clear communication protocols that allow instruction and decision-making to happen efficiently in variable alpine terrain.
To learn more about RMI's history in the North Cascades and how our programs are structured, visit our About page.





Approach through forested terrain to establish glacier camp, spend a full day practicing foundational skills on the Sulphide Glacier, then attempt the summit via moderate glacier travel and exposed climbing on the rock and snow pyramid. After the summit effort, descend to camp, break down the site, and hike out the following morning.
Sedro-Woolley, WA
9,131' / 2,783 m
4 Days
2
1
8 - 10 Hours
7:00 a.m Meet at Sedro-Woolley Ranger Station.
The group meets at the Sedro-Woolley Ranger Station in the North Cascades. Please see our Travel Details document for driving directions and carpool opportunities. Your RMI guides will meet you at the ranger station for introductions, registration for the climb, group gear distribution and personal gear check.
We then drive to the Shannon Ridge trailhead, approx. 2,500', to begin our hike to high camp. For most people this will be the most physically demanding day of the trip as we ascend slowly to an elevation of 6,000' with 45-50 lb packs.
As we move up towards camp we review the foundational skills that make us more efficient and capable climbers. After setting up a solid mountain camp, we are free to relax for the evening.
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After breakfast we head out onto the glacier to begin our training. Our Mountaineering Day School offers participants an overview of various techniques which meet the challenges set forth by Mt. Shuksan. We practice basic mountaineering skills including; efficient mountain travel (rest-stepping and pressure breathing), various safety practices including use of helmets, harnesses, and avalanche transceivers, cramponing, climbing in balance, proper use of our ice axe, self and team arrest, moderate cramponing, movement on rock, short roping and lowering techniques for rock.
Our first priority is the safety of all team members. During the School you will be asked to demonstrate that your fitness will allow you to climb safely, and that you are able to perform the new climbing skills proficiently. We will continue to assess each team member throughout the course of the training and the climb.
After the day of skills training we return to camp where we make our final summit preparations, enjoy dinner, and go to bed early for the next day's climb.
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The summit ascent - Our day begins with a pre-dawn alpine start to give us ample time for this full day of climbing. The Sulphide Glacier is a fun, moderate climb on which we employ our cramponing, route finding and navigational skills, as we make our way around crevasses to the summit pyramid. On our ascent, we climb steadily for one to two hours at a stretch, and then break for 10 to 15 minutes.
The 600 feet of climbing on the summit pyramid constitutes the crux of the climb. Kicking steps and using ice axes for balance, we move up steep snow and make some belayed moves on the 4th and 5th class rock. From the top, we can look north into Canada and south towards Mt. Rainier.
After spending some time on top to enjoy the views and take photos, we begin our descent. We descend the South Face via rappels and belayed down-climbing, then descend the Sulphide Glacier back to camp. Our descent takes about half the time of the ascent, and also requires significant effort.
“Amazing trip to the top of Shuksan! Provided a great mix of glacier and rock climbing.” — Danny G.

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On our last morning we rise early for breakfast, break camp and take three to four hours for the hike back down to the trailhead. The trip concludes with a celebratory lunch in Sedro-Woolley. Those with a plane to catch should plan for an arrival in Seattle around mid-afternoon.
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You should arrive in excellent physical condition and prepared for sustained effort over consecutive days while carrying heavy loads on steep, uneven terrain.
There are no formal technical prerequisites, but this climb is best suited for motivated beginners ready to engage with glaciated alpine terrain and exposed climbing.
This program reaches elevations above 9,000 feet, and climbers should be prepared to perform physically and mentally in high alpine conditions.
The Mt. Shuksan Sulphide Glacier climb is physically demanding and requires strong preparation. Climbers carry heavy packs during the approach, spend a full day practicing skills on the glacier, and complete a long summit day involving moderate glacier travel and exposed climbing on steep rock and snow. Fitness directly affects your ability to move efficiently, recover between efforts, and perform safely when terrain becomes committing.
“Nice tight "do-able" objective, with a mix of climbing styles that gave us the feeling of really accomplishing something.” — Will W.
You should begin training well in advance with the goal of arriving in top physical condition. Training should emphasize uphill endurance with weight, sustained aerobic output, and the ability to move efficiently on varied terrain for extended periods. The closer you get to your program date, the more your training should resemble steep hiking and climbing with a loaded pack.
Recommended climbing experiences include:
Your climbing resumé should include:
Items marked with an Asterix (*) are considered mandatory prerequisites for this program.
Mountaineering places sustained demands on your body and your ability to stay composed under effort. Even very fit people find that moving uphill with weight, for long hours, in variable weather is a different kind of challenge than most everyday training.
Preparation matters. Fitness directly affects how well you move, how much you learn, how the team functions, and how enjoyable the experience is overall.
Start early. Begin training well in advance of your program with the goal of arriving rested, resilient, and confident in your capacity for sustained effort.
Train intentionally. Emphasize aerobic endurance, uphill movement, and strength that supports long days on your feet. Core stability, balance, and mobility all play an important role in efficiency and injury prevention.
Train specifically. The closer you get to your program date, the more your training should resemble the demands of mountaineering: hiking uphill with weight, moving steadily for hours, and recovering well enough to do it again the next day.
Across RMI programs, strong preparation typically means being comfortable with long days of continuous movement, carrying a pack appropriate to the objective, and maintaining focus and decision-making when tired. Technical skills are taught or reviewed as appropriate to each program, but fitness is something you bring with you.
Nothing contributes more to a successful and rewarding experience than arriving well prepared. Plan to be in excellent physical condition and ready for a demanding day in the mountains.
Total Climbing Time
Elevation Gain / Loss
Total Distance
Pack Weight
DAY 1 — Hike to Shuksan High Camp
4 - 5 Hours
Gain = 3,500'
4 Miles
45 - 50 lb
DAY 2 — Mountaineering School
8 Hours
n/a
n/a
20 - 25 lb
DAY 3 — Summit Day
8 - 10 Hours
Gain = 3,125' | Loss = 3,125'
6 Miles Round Trip
20 - 25 lb
DAY 4 — Descent to Trailhead
3 - 4 Hours
Loss = 3,500'
4 Miles
40 - 45 lb
Our guides have decades of experience training for alpine objectives, and we've done our best to put together relevant resources to help you with your expedition preparation.
Mountaineering is both an individual challenge and a team endeavor. Before any program begins, RMI works directly with prospective climbers to confirm that everyone joining a team is genuinely prepared for the demands ahead. Depending on the program, this may involve conversations with our office staff, a review of your climbing history, or feedback from guides and other climbers who know your abilities. The goal is straightforward: to ensure that every person on the rope belongs there. We ask that each climber hold themselves to the same standard:
The standards we set exist to protect everyone on the team. RMI holds all climbers accountable to them, and we take seriously our responsibility to build teams of people who are ready to be in the mountains together. RMI reserves the right to remove a participant from a program or send them to a lower altitude if our guide staff determines, in their sole discretion, that the participant is not physically, technically, or psychologically prepared or capable of participating, or for any other reason that may compromise the safety, health, or well-being of the participant or the group. In such cases, no refunds or credits will be issued, and the participant will be financially responsible for any additional costs associated with an early departure, including evacuation, transportation, lodging, and meals.
The Mt. Shuksan Sulphide Glacier climb takes place on moderate glaciated terrain with exposed rock and snow climbing and requires a complete alpine mountaineering equipment kit. This gear list reflects decades of guiding experience in the North Cascades and is designed to support glacier travel, technical climbing, and multi-day camp systems in variable mountain conditions.
Every experienced mountaineer will refine their kit over time, but this list represents what RMI expects climbers to bring to the mountain. Not every item may be used during the climb, but all required equipment must be carried and available. Conditions, objectives, and risk management needs can change quickly on Mt. Shuksan.
Each RMI program includes a required personal equipment list built around the specific terrain, conditions, and objectives of the climb. Every item serves a purpose and supports safety, efficiency, and comfort in the mountains.
Guide Picks™ are examples that meet our performance standards and illustrate the type of gear we recommend. Each year, our partners at Whittaker Mountaineering survey our staff of 70+ guides to get a consensus on the best gear for the job. You do not need to purchase the exact item shown, but any alternative must offer comparable function and durability.
All listed items are required for the gear check. Final adjustments may be recommended by your guide based on conditions and team needs once the expedition begins.
Most of the required equipment is available for rent or purchase from our affiliate Whittaker Mountaineering. RMI climbers receive a 10% discount on new clothing and equipment items ordered from Whittaker Mountaineering.
We recommend a bag rated between 20° and 0° F. Allow ample room for movement. We recommend down over synthetic for its light weight, warmth, and packability. If you know you sleep cold, consider a 0° F bag.
10- or 12-point adjustable steel crampons with anti-balling plates for general mountaineering and glacier travel. Automatic, semi-automatic, or strap-on attachment depending on boot compatibility. Ensure crampons are compatible with your specific boots before your program.
Glacier glasses are protective sunglasses that provide close to 100% frame coverage (wrap-around frames and side shields ensure no light can enter from the top, bottom, and sides of the glasses) and transmit less than 10% of visual light.
We recommend a minimum of five upper body layers, all of which can be used in conjunction with each other. Two of these should be insulating layers, one light, and one medium, that fit well together. Today there are many different layering systems to choose from, including fleece, softshell, down, and synthetic options.
A lightweight, breathable long-sleeve shirt in synthetic or merino wool for sun protection and moisture management during active climbing.
One step up in warmth and bulk from a baselayer. A technical fleece makes an ideal light weight insulating layer.
An insulated jacket or softshell for warmth during low-output activity and extended rest breaks. Should fit over baselayers and midlayers, and under a shell.
An expedition-style down parka that extends below the waist with an insulated hood, designed to fit over all other layers. Worn primarily in camp, during rest breaks, and on summit day. Down fill recommended over synthetic.
We recommend a system of four layers, all of which can be used in conjunction with each other. Products which combine several layers into one garment, such as traditional ski pants, don’t work well as they don’t offer the versatility of a layering system.
Lightweight synthetic or merino wool baselayer bottoms for moisture management and temperature regulation during active climbing.
Softshell climbing pants can be worn in combination with a base layer on colder days, or alone on warmer days.
Non-insulated, waterproof shell pants must be able to fit comfortable over your baselayer bottoms and softshell climbing pants. Full side zippers or 7/8 side zippers are required so that shell pants can be put on while wearing boots and crampons.
Insulated, full-shank, crampon-compatible leather or synthetic boots designed for general mountaineering. Lighter and more comfortable than double boots but with less insulation for extreme cold.
Lightweight approach shoes or trail runners for hiking on rugged terrain and use as camp shoes. Particularly useful after snowmelt on lower-elevation approaches.
A knee-length pair of gaiters, large enough to fit over your mountaineering boots. This will protect you from catching your crampon spikes on loose clothing. Not needed if using a boot with an integrated gaiter.
Either wool or synthetic. Whatever sock combination you are accustomed to wearing during your training or previous adventures (whether single medium weight socks, a medium weight with a liner sock, two medium weight socks together, etc.), should work just fine for this climb.
Our guides carry comprehensive medical kits, so keep yours small and light. We recommend a selection of adhesive bandages, antibiotic ointment, Moleskin and blister care, medical tape and/or duct tape, basic pain reliever, and personal medications.
You are responsible for providing your own meals and snack food in town and while on your program. See the Food tab for suggestions and quantities.
This will be your personal trash bag.
Heavy-duty trash compacter bags for use as waterproof pack/stuff sack liners. You can also use a waterproof pack liner.
Disposable or reusable ear plugs for sleeping in shared tent or hut accommodations.
Spare prescription glasses if you wear contact lenses/eyeglasses.
Many smartphones have excellent cameras. Action cameras, small point-and-shoots, and compact dSLRs are lightweight and work well at altitude.
A small power bank, enough to charge a phone or e-reader several times.
We recommend bringing a selection of clothing to wear while traveling, sightseeing and dining.
If Glacier Glasses are not required, regular sunglasses will suffice on this program.
Purchase travel insurance.
Purchase airplane tickets.
Arrange transportation and lodging - see more on the Travel tab.
Reserve rental equipment.
Be in the best shape of your life!
On the Mt. Shuksan - Sulphide Glacier you will need 4 mountain lunches, 3 dinners, and 3 breakfasts while on the mountain.
Nutrition while training and nutrition while climbing are two very different things. You may follow a pretty specific nutrition regimen while you are training to aid your desired outcomes, but once it comes to the climb, calories are what count the most. While climbing, you are trying to maximize energy and performance over a short period of time.
Our food priorities when climbing are:
Caloric requirements will vary widely from climber to climber based on physical size and metabolism. It is important for you to know what your body requires. One of the normal, albeit disconcerting, adjustments to altitude is a slight loss of appetite. Bring food you enjoy. If you don't love a food at home, you certainly won't like it on the mountain!
At camp, hot and cold water will be provided for your meals, drinks, and refilling water bottles. When planning your menu, don't bring any items that require extensive preparation, cooking, or simmering. We are able to provide you with boiling water but do not have the ability to actually cook food items.
Things to keep in mind as you plan your meals:
Consider repacking items into smaller Ziploc bags to minimize the space in your pack. Your food will get crammed into your backpack, jostled around, exposed to extreme temperatures, and even sat on (by you, of course!). What holds up better in these conditions, two slices of bread or a bagel? When packing, it is essential to consider the waste you will produce on the climb; after all, you have to carry it off the mountain. We've already mentioned repacking items to minimize space. Repacking items can also eliminate waste!
Mountain lunches, aka snacks, are eaten during short breaks throughout the day. We continually snack to keep our energy levels up while we climb. We typically take rest breaks every hour or so to adjust our clothing layers, eat, and hydrate. Avoid packing any items that require preparation or hot water at each break. In terms of quantity, aim to bring 1 lb. of climbing food per day. We suggest using snack or sandwich size Ziploc bags to portion out snack food.
The importance of having foods that you genuinely enjoy cannot be overstated. Eating properly is the key to maintaining strength while in the mountains. To combat the loss of appetite at altitude, we aim to have a variety of foods that stimulate the whole palate, from sweet to sour to salty. Here are some ideas but be sure to see the sample menu and packing list below for more ideas!
PRO TIP: Feel fancy! Charcuterie (cured meat, cheese, and crackers) makes a great mountain lunch!
Single-serving instant oatmeal, Cream-of-Wheat, or granola make a good main course fare. A variety of granola bars, pastries, fruit, and a hot drink mix of coffee, tea, cocoa, or cider are suggested. Plan on eating a breakfast that tastes good, and you find filling. Here are some ideas but be sure to see the sample menu and packing list below for more ideas!
PRO TIP: Think outside the box. Peanut butter and jelly sandwiches (on bagels) or ramen make great breakfast options!
This meal will give your body the initial fuel it needs during your summit attempt. Spend time considering your options so that you go to bed nourished and ready for the climb ahead of you. Freeze-dried entrees are very convenient mountain dinners. Pay attention to the caloric quantity – it varies from meal to meal. Here are some ideas but be sure to see the sample menu and packing list below for more ideas!
PRO TIP: Have a tasting party of freeze-dried entrees to test them out before your climb.
Staying hydrated on the climb is crucial. You will have access to ample cold water while at camp for drinking and replenishing water bottles. When you are climbing, you will want to ration how much water you drink at each rest break to ensure you have water throughout the entirety of your climb. You can expect breaks to occur approximately every hour or so of climbing.
Just as with food, it is important to have a variety of things to drink that excite your taste buds. You may love water, but it may not sound good at 10,000'! Drink mixes such as Gatorade, Kool-Aid, Liquid IV, Nuun, etc., are great for flavor. Hot beverage options are also an important component to consider while at camp. Instant coffee, tea, cocoa, and cider are great ways to warm up in the evening before bed, when you wake up for your alpine start on summit day, and to recharge once back at camp.
PRO TIP: Skip the water bladder and practice rationing your water while training.
This page covers the practical details you’ll want to review before your trip, including travel logistics, entry requirements, local considerations, and required policies. Taking time to understand these details ahead of departure helps ensure a smoother experience once you’re on the ground and focused on the climb.
You are responsible for your own transportation to the program's trailhead. Most climbers will fly into Seattle-Tacoma International Airport (SEA) the evening before the program and rent a car for the 1 3/4 hour drive. The town of Mt. Vernon is approximately 76 miles and an hour and twenty minutes from SeaTac depending on traffic congestion. You will find a few more hotel and breakfast options here than in Sedro-Woolley. The small town of Sedro-Woolley, "The Gateway to the North Cascades", is approximately an hour and forty minutes from SeaTac. Our meeting place is the Sedro-Woolley Ranger Station. We meet at 7:00a.m. Click here for driving directions.
Note: Every air traveler 18 years of age and older needs a REAL ID compliant driver’s license, state-issued enhanced driver’s license, or another acceptable form of ID to fly within the United States.
After a team meeting we drive to the climb's trailhead. You will need a Northwest Forest Service parking pass to leave your car at the trailhead. Passes are $30 and valid for one year. There may be an opportunity to leave some vehicles at the Ranger Station and carpool with other team members. Northwest Forest Service parking passes are available for sale at the ranger station.
Ride Share: If you are participating in a climb and are interested in sharing a ride, please post your information in the "Ride Share" forum of your North Cascades Discussion Board by logging into your RMI Account.
Spend the night in either Sedro Woolley or the nearby town of Mt. Vernon.
Your travel insurance policy should include trip cancellation, trip interruption, travel delay, baggage loss or delay, medical expenses, and evacuation.
Navigating through the different options for travel insurance can be challenging. When purchasing Travel Insurance, here are a few items to consider:

In today’s changing travel environment, it’s important to protect your travel investment. Unforeseen events such as flight delays, baggage loss or even a sudden sickness or injury could impact your travel plans. For your convenience, we offer Travelex Insurance protection plans to help protect you and your travel investment against the unexpected.
For more information on the available plans visit Travelex Insurance Services or contact Travelex Insurance (800) 228-9792 and reference location number 47-0370.
The product descriptions provided here are only brief summaries and may be changed without notice. The full coverage terms and details, including limitations and exclusions, are contained in the insurance policy. Travelex Insurance Services, Inc. CA Agency License #0D10209. Insurance coverages underwritten by individual member companies of Zurich in North America, including Zurich American Insurance Company (NAIC #16535, state of domicile: New York). RETWEB

Harbor Travel Insurance covers the following critical benefits:
Harbor Travel Insurance is powered by Redpoint Resolutions, a medical and travel security risk company. Their team is comprised of special operations veterans, paramedics, Stanford Medicine affiliated physicians, former intelligence officers, insurance actuaries, and global security experts with dozens of years of experience in theaters around the world. The Redpoint network covers the globe, making them uniquely equipped to provide elite rescue travel insurance – in every sense of the word.
RMI has partnered with Erin Rountree to provide travel planning support. Erin is an independent agent with extensive experience booking travel for adventure programs worldwide and understands the specific needs of RMI expeditions.
Phone: (208) 788-2870
Email: [email protected]
It is your responsibility to ensure that your travel insurance policy provides appropriate coverage for your specific program and activities. Review policy details carefully before purchasing, and confirm coverage well in advance of your departure.
For updated North Cascades weather forecasts, click here.
Our guides put considerable effort into ensuring your safety and success on the mountain. If you had a positive experience, leaving a gratuity is a wonderful gesture to show your appreciation. The amount is up to you and should reflect how much you enjoyed the service. Typically, tips for excellent service range from 10% to 15% of the program cost. Guides can accept gratuities in cash, Venmo, or by check. If you prefer, you can also pay tips using a credit card through the RMI Office.
North Cascades National Park has over 300 glaciers, more than any other park in the lower 48 states. More than half the glaciers in the 48 states are concentrated in this mountainous wilderness region called the North Cascades.
For more facts click here, and for even more click here.
General Information on North Cascades National Park.
The following policies are applicable for this expedition.
Rainier Mountaineering, Inc. reserves the right to modify the land cost of a trip at any time before departure.
Deposit Payments: A non-refundable deposit of $400 per person is required to secure your reservation.
Balance Payments: The remaining balance is due 120 days before your program's start date.
*Note: A 3% surcharge applies to all credit/debit card transactions.
**Wire transfers must include all fees charged by your bank. The amount received by our bank must match the deposit amount.
The deposit is non-refundable and non-transferable.
We do not offer refunds. Please remember this before registering for this program. Due to the time-sensitive nature of this program, no exceptions will be made to the cancellation policy.
Date changes are subject to availability and can only be applied to the current climbing season. Changes must be requested at least 90 days before the departure date and will incur a $200 fee per person. No date changes are allowed within 90 days of departure.
Please clearly understand that mountaineering is inherently hazardous. Managing risk is RMI’s number one priority. Our guides manage significant hazards inherent in mountaineering, but they cannot eliminate them. Objective hazards include rockfall, icefall, avalanches, slides or falls by individuals and rope teams on steeper slopes, weather-related problems including cold, heat, high winds, and other unnamed dangers that can occur while climbing.
You are choosing to engage in an activity in which guided and non-guided climbers have been injured or killed. While those accidents are indeed infrequent, they may occur at any time and be out of our control. We ask that participants acknowledge the risks and hazards of mountaineering and make their own choices about whether or not to engage in this activity.
Mountaineering is both an individual challenge and a team effort. Each participant shares responsibility for the safety and success of the group. Therefore, we ask that each participant:
RMI reserves the right to remove a participant from the program or to send them to a lower altitude if the guide staff determines, at their discretion, that the participant is not adequately prepared or capable of participating safely. This decision may be based on physical, technical, or psychological factors, or any other reason that might affect the safety, health, or well-being of the participant or the group. If removed, the participant will not receive refunds or credits and will be responsible for all additional costs associated with early departure, including evacuation, transportation, hotel reservations, and meals.
Rainier Mountaineering, Inc. (RMI) does not tolerate harassment or mistreatment of our participants or employees. Inappropriate conduct under this policy may include conduct that creates a disrespectful, intimidating, hostile, degrading, humiliating, or offensive environment for a participant or employee. Engaging in such conduct is a violation of this policy.
RMI may consider conduct to violate the policy even if it falls short of unlawful harassment under applicable law. When determining whether conduct violates this policy, we will consider whether a reasonable person could conclude that the conduct created an intimidating, hostile, degrading, or demeaning environment.
Violation of this policy may result in removal from a program, as well as refusal to provide services indefinitely. We place the utmost value on the safety of our participants and employees. Please report any incidents to RMI management.
All participants must be 18 years old at the time of registration.
RMI’s Photo Release outlines the terms and conditions for using your likeness in photographs, videos, or other digital media.
I hereby grant Rainier Mountaineering, Inc. (RMI) or its affiliates permission to use my likeness in a photograph, video, or other digital media (“photo”) in any and all of its publications, including web-based publications. By granting permission, you allow RMI to utilize these media for lawful purposes.
Here are the key points:
RMI cannot guarantee that you will reach the summit. Weather, route conditions, your own abilities, or the abilities of other climbers may create circumstances that make an ascent unsafe, and you or your entire group may have to turnaround without reaching the summit.
Failure to reach the summit due to a person’s own lack of fitness or to any of the events associated with mountaineering (such as weather, route conditions, avalanche hazard, team dynamics, etc.), are not Rainier Mountaineering, Inc.’s responsibility and will not result in a refund, credit, or reschedule.
RMI’s program schedule and itineraries are subject to change or adjustment based on a number of factors. These include, but are not limited to, route conditions, weather, group strength, terrain, or other environmental factors, and many other factors. RMI has complete discretion to change plans to accommodate any of these or other factors, including but not limited to, increases in program fees, changes to program schedule or itinerary, and changes to guides or staff, as necessary for the proper and safe conduct of the program. Once the program has started, the Lead Guide will decide on any changes to the itinerary, including ending the program early if the continuation of the program may compromise the safety, health, or well-being of the group.
We reserve the right to cancel any program due to inadequate signups, weather, route conditions, or for any other reason. In such a case, we will make every effort to reschedule the Participant on a different program date. If rescheduling is not possible, we will issue the Participant a refund for all program fees paid to RMI, less any non-refundable payments made on behalf of the Participant to secure any of the included land costs provided for this program, including but not limited to, hotel accommodations, transportation, transfers, tours, group equipment and food, permits, and local outfitter services, prior to the cancellation of the program. Additionally, RMI cannot be responsible for any non-refundable expenses the Participant incurred in preparation for the program (i.e., airline tickets, hotel reservations, rental cars, equipment purchases or rentals, etc.).
Once a program begins, there are no refunds or credits for weather-related cancellations or for a program that may end early due to weather, route conditions, or any other circumstances that may compromise the health, safety, or well-being of the group. Furthermore, if the Participant decides for any reason not to begin a program or discontinue a program at any time, no refunds or credits will be issued. The Participant will be responsible for all additional costs associated with an early departure, including but not limited to evacuation, transportation, hotel reservations, meals, etc.
Land Costs are provided as a package, and refunds or credits will not be issued for any unused meals, accommodations, group transportation, or other unused costs. Accommodations are based on double occupancy. A Single Supplement Fee will be charged to those Participants occupying single accommodations either by choice or circumstance. If you are willing to share a room, we will make every effort to pair you with another same-gender team member. We will match willing same-gender team members based on the order of registration date. If we are unable to match you with another same- gender team member, a single supplement fee will be charged. The availability of single accommodations is limited in most of the hotels where we stay, and single accommodations are not available while in the mountains.
The Participant understands and agrees that RMI assumes no responsibility or liability in connection with any travel and hospitality services provided to the Participant by other companies in connection with the program, including but not limited to, the services provided by airlines, hotels, rental cars, and transportation companies. In addition, RMI is not responsible for any act, error, omission, or any injury, loss, accident, delay, irregularity, or danger by a supplier of travel or hospitality services to the Participant in connection with the RMI program. The Participant will be responsible for all costs associated with any travel delays, missed connections, or missing baggage that requires additional arrangements (separate transportation, hotel accommodations, meals, etc.) to be made on your behalf for you or your baggage to rejoin the program.
The Mt. Shuksan Sulphide Glacier climb raises different questions than introductory mountaineering programs or higher-altitude objectives. This is a moderate glaciated climb with real alpine commitment, and success depends on preparation, conditions, and sound decision-making over multiple days. The answers below address how this program operates, how to prepare, and what to expect while climbing one of the North Cascades' most recognized peaks.
The program begins at 7:00 a.m. at the Sedro-Woolley Ranger Station in Sedro-Woolley, Washington.
You are responsible for your own transportation to the meeting location. The team will carpool from the Sedro-Woolley Ranger Station to the trailhead.
The Mt. Shuksan Sulphide Glacier climb is guided at a 2:1 climber-to-guide ratio.
You should arrive in excellent physical condition and prepared for sustained effort over multiple days. Day 1 involves a steep approach with a 45–50 lb pack, Day 2 is a full training day on the glacier, and Day 3 is a long summit day involving glacier travel and exposed climbing. Fitness directly affects your ability to move efficiently, recover between efforts, and perform safely on exposed terrain.
Expect to carry 45–50 lbs during the approach and descent. On summit day and training day, packs are lighter, typically 20–25 lbs.
Guides closely monitor climbers throughout the program. If someone is struggling, guides may adjust pacing, provide coaching, or modify objectives to maintain appropriate risk management for the team. Because this is a goal-oriented climb with a fixed itinerary, climbers must be capable of meeting the baseline physical demands.
The Day School is a full day of skills training on the Sulphide Glacier. Guides cover foundational mountaineering techniques including cramponing, ice axe use, rope team travel, self-arrest, and movement on moderate glacier terrain. This training prepares climbers for the technical demands of summit day.
The summit pyramid is the technical crux of the climb. It involves approximately 600 feet of steep snow climbing and exposed rock moves up to 4th and 5th class. Climbers use ice axes for balance, kick steps in snow, and make belayed moves on rock. The terrain is committing, with significant exposure.
The descent involves rappels and belayed down-climbing on the South Face followed by a return to camp via the Sulphide Glacier. The descent requires focus and takes roughly half the time of the ascent.
Yes, if you are well-prepared. This climb is well-suited for motivated beginners ready to engage with glaciated terrain and exposed climbing. The Day School provides necessary skills training, but climbers should arrive physically ready and mentally prepared for committing alpine terrain.
North Cascades weather is highly variable. Climbers should be prepared for wind, cold temperatures, precipitation, and rapid changes in visibility, even during summer months.
Three main factors generally prevent climbers from reaching the summit: weather, route conditions, and individual fitness.
Weather
Avalanche hazard, wind, precipitation, and visibility can impact the ability to climb while maintaining an appropriate margin of security. If conditions deteriorate, guides may delay, turn around, or adjust objectives.
Route Conditions
Guides continually assess crevasse patterns, snow stability, rock conditions on the pyramid, and overhead hazards. While there is often a way to the top, conditions may not always support a guided ascent with an acceptable margin of risk.
Fitness
Fitness is the factor climbers have the most control over. Rope teams move at a steady pace based on route length and complexity. Improving fitness is the most effective way to increase your chances of a successful summit attempt.
Guides continuously assess weather, route conditions, and team performance. Decisions are based on disciplined risk management and maintaining appropriate margins for the entire group.
The guide team makes all final decisions on the mountain, with climber security and long-term success as the priority.
Guides are trained in remote medicine and rescue techniques and carry medical and communication equipment. Responses vary based on severity and conditions and may include descent or evacuation if necessary.
Guides carry comprehensive medical kits and radio communication equipment appropriate for remote alpine terrain to support emergency response and coordination.
Climbers rated RMI with an average of 5 stars across 0 ratings
Climber reviews of the Mt. Shuksan Sulphide Glacier climb consistently highlight the quality of instruction during the Mountaineering Day School, the exposure and commitment of the summit pyramid, and the full alpine experience from forested approach to glaciated summit. For many climbers, this program stands out as a formative first Cascades objective that builds both technical skill and confidence for future alpine climbing.
August 25, 2025
Mt. Shuksan - Sulphide Glacier
I loved the perfect pace, the variety of new skills I picked up, the incredible guidance from the team, and the constant encouragement along the way. This was my first time mountaineering and it left such an incredible mark on my heart that I will definitely be leaning in more to these skills in the future.
Meagan L
August 24, 2025
Mt. Shuksan - Sulphide Glacier
It's hard to pick just one thing: we had an incredible group of people who were awesome to hang out with and genuinely enjoyed everyone else's company; we had the best guide group anyone could ask for; and despite the monsoon that occurred our first day on the mountain we had excellent weather and the sun came out just as reached the summit. I don't think anyone could ask for a better confluence of things or a more incredible experience.
Ellen D
September 19, 2022
Mt. Shuksan - Sulphide Glacier
I really liked the blend of backpacking, mountaineering, and rock climbing on this trip. It was the perfect mix of terrain! I also really enjoyed the pacing. One big day to high camp, then a more local day for snow school, then a big summit day. Perfect!
Clayton W
August 24, 2022
Mt. Shuksan - Sulphide Glacier
The people made this trip awesome. I couldn't ask for a better group of guides or participants. Everyone got on really well, and the energy and communication was great. While this was my third experience on a glaciated peak in Washington, I enjoyed skills day because I love learning from different people and their experiences. There is always room to improve one's technique and skills, and grow in the mountains.
Elizabeth K
September 9, 2019
Mt. Shuksan - Sulphide Glacier
The whole trip was great! The hike in was amaizing and our basecamp will forever be in my memory. I really enjoyed being at base camp picking the guides brains and of course my favorite portion was the crossing of the glacier and the pyramid climb with Avery.
Joshua G
August 27, 2018
Mt. Shuksan - Sulphide Glacier
I've climbed with Steve and JT before, and they are great. I enjoyed the pace of the trip. Rainier 4 day is too fast and this one is just perfect. Also, the rock climbing training on day 2 is great. It gave excellent confidence for summit day. Really enjoyed that part.
Kevin R
September 27, 2017
Mt. Shuksan - Sulphide Glacier
The part of the trip I enjoyed the most was how incredible Steve, JM and Nick were as guides. As someone who had never experienced mountaineering before I was not sure what to expect on the trip, but Steve, JM and Nick all made me feel comfortable and safe and were integral to my full enjoyment of the experience. I had an awesome time throughout the trip, and would absolutely do another trip with RMI because of it.
Brendan L
August 26, 2016
Mt. Shuksan - Sulphide Glacier
It was so much more than I thought it would be! As always, I love the women's climbs for the collaboration between clients- but this trip showed how well the guides can work together (same as on my Rainier trip last year). Watching them problem solve and communicate, and use their skills and knowledge, was an amazing learning experience. And they seemed to have fun too! Loved the combination of trail/glacier/rock travel, and the setting is beyond beautiful. My confidence has improved so much after this trip. I'll be looking for the next step soon.
Karen S
September 8, 2015
Mt. Shuksan - Sulphide Glacier
This trip was a great introduction to the wonders of climbing in the North Cascades. As Eric mentioned several times, the relatively low summit elevation belies considerable challenges involved in a climb of Mt. Shuksan. As on my previous trip with RMI, Eric demonstrated exceptional ability as a guide. I can't say enough superlatives about his knowledge, skill, and personality.
Jeremy D
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Additional Comments
Exceptional Team Leader!