So, you want to climb Mt Rainier.

So, you want to climb Mt Rainier.

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Activities Activities: Mountaineering

So, you want to climb Mt Rainier.

Gib Ledges - Mt Rainier
Descending Gibraltar Ledges
Mount Rainier is a unique mountain within the contiguous United States. No other mountain is as extensively glaciated or has as much prominence. The scale and character of Mt. Rainier is more akin to an Alaskan or Andean peak. The highest trailhead requires the climber to gain 9,000 feet of elevation to reach the summit, as much as from Everest ABC to its summit. The weather on Mt. Rainier changes remarkably quickly, typically for the worse. Blizzards are not uncommon in August, and the high winds and moisture laden air sap heat and wilt down insulation. If you are planning an attempt on Rainier there are a few things you should know. This article includes tips I have gleaned from over two decades and dozens of climbs on ‘The Mountain’. Bear in mind that this article is not a substitute for proper instruction or experience. Mt. Rainier kills climbers almost every year.

Objective Hazards

Climbers refer to the dangers inherent to mountaineering that they have little control over as objective hazards. Mt. Rainier aspirants should be aware of these, and make plans to mitigate the risks as much as possible. These include, but are not limited to the following:

  • Altitude The high altitude and low atmospheric pressure of Mt. Rainier can induce a number of maladies, including Acute Mountain Sickness, High Altitude Cerebral Edema, and Pulmonary Edema. Know the symptoms and how to avoid these life threatening conditions.

  • Crevasse Falls Crevasse falls are a serious hazard on Mt. Rainier. Know and practice safe glacier travel techniques and carry the appropriate gear.

  • Falls on Ice/Rock Falling off of steep ice and rock can happen. Use belayed climbing and running protection where appropriate. Practice self arrest so it is second nature, and can be employed without thought.

  • Rock/Ice Falls Melting snow and ice foments falling ice and rocks. Wear a helmet, avoid climbing under cliffs as much as possible, and do not dawdle in rock and ice fall areas. Rocks embedded in the glacier are a clue to keep moving.

  • Serac Fall Seracs are unstable cliff bands formed by the leading edge of a glacier flowing over a cliff. The worst mountaineering accident in U.S. history occurred when a serac released, sweeping 13 climbers to their deaths. Avoid climbing under serac bands and cross quickly underneath when forced to.

  • Weather High wind, frigid temperatures, humid conditions, blizzards, lightning, and intense sun can all create problems on Mt. Rainier. Check the forecast before you go, and recognize that the weather is usually worse on the mountain than in town, and bad weather arrives 12 to 24 hours before it hits the lowlands. Generally, storms come from the south in winter and north in summer. Keep and eye open for tell tale signs of approaching storms including mare's tails and growing, descending lenticular clouds. Do not climb into a growing storm.

  • Avalanche Avalanches are deadly, and not just in winter. A team was swept off of Disappointment Cleaver in the summer by a wet slide started by a member of the same party. Check conditions and insist on a favorable forecast before heading out.

The Skill Set

Rope team on glacier
Rope team on a glacier
Mt. Rainier is a heavily glaciated mountain and anyone attempting to climb it should have solid mountaineering and glacier travel and crevasse skills. In addition to the mountain traveler's knowledge of weather, route finding, winter camping, etc., one should be proficient in the following techniques for safe glacier travel:

  • 'Reading' the glacier and route finding
  • Ice axe use (arrest, self belay, step chopping, etc.)
  • Belaying techniques on snow and ice (boot axe, sitting hip, ice screw, etc.)
  • Use of crampons, French technique
  • Rope work: knots, roped travel
  • Ascending a rope with Prusik cords/mechanical ascenders
  • Setting snow and ice anchors (ice screws, pickets, bollards, dead men, flukes)
  • Building a Z hauling system (Z x C if in a two person party)
  • Hazard recognition (seracs, rock fall, crevasses, weather)

If you are not absolutely proficient in these techniques, you must learn them from a qualified instructor prior to a summit attempt. An excellent primer on these techniques can be found in Freedom of the Hills, 8th ed., but is no substitute for proper instruction. There are many clubs that offer mountaineering courses, including the Washington Alpine Club, the Boeing Alpine Club, The Mountaineers, and The Mazamas. Many climbers choose to hire a guide service. Climbing with a qualified guide can increase a new or visiting climber's chance of summiting while decreasing the chance of making poor decisions.

The Climbing Season

Gib Ledges - Mt Rainier
Enjoying fine weather on Rainier
The typical climbing season starts in April and runs through September. Weather is king on Mt. Rainier, and more trips are spoiled by poor weather than any other factor. Weather improves throughout the season and becomes much more stable after the first week of July. The flip side is crevasses open up, snow bridges become weaker, and routes become more circuitous. Some routes are only appropriate early in the season, April through mid June, as rock fall becomes increasingly problematic once the ice that binds the loose volcanic rock melts.

The trick is to find the sweet spot when conditions are good and weather is stable. Historically, I have found that July is the best month for this. The last several years, however, have seen low winter snowfalls, particularly during the critical early winter period. This has lead to routes becoming icy, broken, and circuitous earlier in the season, and technical routes becoming dangerously out of condition by the end of June. Before you go, check the weather and insist on a good forecast. The Mount Rainier climbing rangers maintain a blog with the current climbing conditions.

Selecting a Route

Mt. Rainier climbing routes
Mt. Rainier climbing routes
There are many good route options for alpinists of varying ability and experience. If you are fairly new to climbing your best choices are Ingraham Glacier Direct, Disappointment Cleaver, or the Emmons Glacier. These, however, are the most popular routes and during the height of the climbing season it may be difficult to secure a camping permit. If you want to be assured of a spot apply for a permit early. Less crowded, but slightly more technical routes include the Kautz Glacier and Fuhurer Finger routes. For a true wilderness experience the Tahoma Glacier is hard to beat.

Experienced alpinists looking to step up their game are lured by Liberty Ridge, the largest snow and ice route in the lower 48, made famous by its inclusion in 50 Classic Climbs of North America. True Mt. Rainier aficionados can find steep, challenging climbing on Ptarmigan Ridge, Curtis Ridge, and Mowich Face.

There are several guide books available that cover Mt. Rainier:

Mount Rainier: A Climbing Guide by Mike Gauthier
Cascade Alpine Guide: Climbing and High Routes: Vol 1- Columbia River to Stevens Pass (3rd Ed.) by Fred Beckey
Selected Climbs in the Cascades, Volume I and II by Jim Nelson and Peter Potterfield


The mountaineer's training regimen is perhaps the single most important factor for success that lies in their control. And while any reasonably fit person can climb Mt Rainier, a focused, specific training regimen will make your climb more enjoyable. Tailor your program to mimic the demands of climbing a big mountain. Summit day will likely be an 8 -12 hour affair so it is important to train long. Load up a pack and hike your local hills, or do long trail runs or bike rides. Lift weights to strengthen your core, shoulders, back and legs. Don’t neglect high intensity cardio like interval work. You want the ultra runner’s endurance, the sprinter’s speed, and the weight lifter’s power. Your goal is to become an all around athlete.

Many people train solely on a stair stepper machine or by hiking with a pack filled with water bottles which they dump out for the hike down. Both of these training methods will help you for the climb up, but remember you have over 9,000 feet to descend, usually on the same day as the 4,000-5,000 ascent on summit day. One needs to train the muscles for the hike down as well. I find trail running in the mountains to be very effective. Running down hill does more to strengthen your legs than running or hiking uphill.& Running down hill generates forces several times your weight, far more than can be carried on your back, which must be countered with the eccentric contraction of your leg muscles. If no other options exist, doing various squats and lunges in the gym can help train these muscles.

Extreme Alpinism, Climbing Light, Fast, and High by Mark Twight is a classic on the subject of training in particular and climbing in general. Training for the New Alpinism, A Manual for the Climber as Athlete by Steve House and Scott Johnston incorporates the newest training philosophies.

Body Results has a wealth of information online that is of interest to the mountain athlete. The owner, Courtenay Shurman, wrote the training chapter in Freedom of the Hills, and is my personal trainer.


Belay Parka
Belay parkas layered over the top
The old climber's adage “light is right” couldn’t be truer for Mt. Rainier. When buying gear look for the lightest possible piece that will meet your needs. Most first time climbers err on the side of caution and bring too much food and clothing. Don't bring any 'extra' gear but don't forget anything critical. Your total pack weight should be no heavier than 35 pounds. Below is a gear list that works for me from April through September. Bear in mind that some routes and conditions will require additional gear and clothing. This is only a suggested list.

During the main climbing season, early spring through early fall, you can experience temperatures from the mid 70's at the trailhead to well below freezing with high winds on the summit. You will need to pack a clothing system that will handle the range of temperatures you may expect. On summit day dress to stay just warm enough while moving. You should feel chilly standing around waiting for your rope team to get moving. A 'belay jacket' is critical for this approach. Carry a warm synthetic or down insulated hooded parka that is sized to fit over all your layers. The belay parka goes on when you stop for short breaks and in extreme cold and high winds.


  • Sun hat - something with a brim to protect your face.
  • Warm hat - wool or fleece
  • Sun glasses - dark glacier glasses with side shields
  • Headlamp - Small LED with extra batteries - lithium last longer, are lighter and less affected by cold weather than alkaline batteries


  • Boots - either plastic or insulated leather mountaineering boots
  • Liner socks - thin merino wool or synthetic (2 pair) (optional)
  • Heavy socks- merino wool or synthetic (2 pair)
  • Gaitors (optional, good for early season wet snow)


  • Liner gloves - cheap poly pro work well
  • Warm gloves - Fleece liner with a nylon type shell work well - include spare liners or a spare pair of gloves


  • Pants - mid weight soft shells work great
  • Long underwear - mid weight synthetic or merino wool
  • Fleece tights - 200 weight PowerStretch is plenty warm and less bulky than fleece (optional early and late season or if you get cold easily)
  • Light weight hard shell pants (optional)
  • Shorts - (optional, nice for hiking to high camp in warm weather)


  • Short sleeve shirt- light colored synthetic or light weight merino wool
  • Light weight fleece jacket or puffy (early and late season or if you get cold easily)
  • Wind shirt - lightly insulated nylon jacket is very versatile (e.g. Marmot Driclime)
  • Shell - light weight hooded jacket to repel wind and precipitation (e.g. Marmot Precip)
  • Insulated parka - hooded synthetic or down 'belay parka'

Pack size of Rainier
Appropriate pack size

Personal gear

Technical gear

  • Crampons - 12 point steel with anti balling plates
  • Ice axe
  • Helmet
  • Harness - lightweight webbing harness with drop legs. (e.g. Black Diamond Couloir)
  • Picket - 24"
  • Pulley
  • Prusik slings - 5mm perlon or Tiblocs
  • Runner/slings - 2 single, 1 double
  • Carabiners - 6 wire gate, 3 lockers

Camping gear

  • Sleeping bag - 20 degree or warmer if you sleep cold
  • Sleeping pad
  • Backpack - 40-50 liters is about right. Any larger and you’re not going light
  • Trekking poles (optional)
  • Small pocket knife
  • Lighter - I prefer a mini Bic
  • Water bottles (2) - I like to bring one bladder and one Nalgene to use as a mug
  • Bowl - I like to use the disposable ‘Tupperware’ type such as Ziplock
  • Spoon - I learned the hard way of the value of an unbreakable spoon.

Shared gear

  • Rope - 30 to 50 meters, 8 to 9 mm. Climbers may be tempted choose a thin twin rope to save weight, but should be cautioned that hauling and ascending skinny cords is very difficult. I personally use a burly half rope.
  • Shelter - Tent or tarp if you are not planning on sleeping in the Muir public shelter
  • Stove - butane canister stove systems work very well (e.g. Jet Boil, MSR Reactor)
  • Fuel - at high camp all your water will need to be melted from snow. Carry enough fuel for two extra days
  • Pot
  • Pot lifter (optional)
  • Lighter
  • Map and compass
  • GPS (optional)
  • Wands (optional)

Additional gear for technical routes.

Routes like Liberty Ridge, Ptarmigan Ridge, Kautz Glacier, Mowich Glacier Headwall, Sunset Amphitheater Headwall, and Curtis Ridge offer the experienced alpinist challenging climbing on steep ice and rock. You will need additional gear for these routes, which include, but are not limited to the following:

  • Second ice tool or a pair of ice tools
  • Full length rope - 50 -60 meters
  • Ice screws - 6-8
  • Rock protection - pitons, Tricams, and cams work better than nuts in the highly broken volcanic rock
  • Extra runners and carabiners


  • Sunblock - I like to use SPF 40
  • Lip balm - At least SPF 15
  • Toilet paper
  • Blue bags
  • First aid kit - for injuries, blisters, small wounds, allergies, etc.
  • Entertainment - music players or other electronic widgets

What about winter?

Climbing Rainier in winter can be a valuable learning experience for those heading to the greater ranges. Deep snow, bad weather, cold temperatures, and short days all make for a much more challenging experience compared to a spring or summer attempt.

Most of Mt Rainier's routes have had winter ascents, but since the road to Paradise is the only plowed road in winter, a south side route makes the most sense. Gibralter Ledges, Ingraham Direct, and Disappointment Cleaver are all good candidates for a winter attempt. These routes will allow you to stay in the Muir shelter, a much nicer alternative to a tent or snow cave.

When to go?
Winter officially starts December 21st and ends March 21st. Any climb made between these dates is considered an official winter ascent. During the winter the prevailing wind and storms are out of the south west. This effectively strips the snow off of south facing routes high on the mountain. This makes for poorly bridged crevasses and sastrugi snow which effectively conceal hidden crevasses. A good strategy is to aim for late winter which tends to offer better snow conditions, longer days, and a better chance of a good weather window.

Locals watch the weather and avalanche forecasts and drop everything to attempt a winter ascent. Traveling climbers don't have the same luxury. A good strategy is to shoot for the weeks before and after President's day weekend in February. The PNW enjoys a high pressure system every year right around that time which can last a few days or a couple of weeks.

What to know
Avalanches are, or should be, a big concern. Everyone attempting Rainier in winter should have avalanche training and the necessary tools (beacon, shovel, and probe). Watch the avalanche forecasts, don't make an attempt while it is snowing or shortly after it has snowed.

White outs are a big problem, especially in winter. Know how to get back from Camp Muir to Paradise. People have died trying to get back down in a white out. The NPS publishes a map with compass bearings to prominent features. Get one and know how to use your compass and altimeter. Laying in a GPS track as a back up is a good idea, as are wands.

What to bring
In addition to the usual kit for Rainier, the following items should be considered indispensable.
  • Avalanche tools - snow saw, shovel, beacon, probe
  • Double plastic boots
  • Flotation - snow shoes or skis
  • White gas stove and extra fuel
  • Extra food
  • Hard shell pants or heavy soft shells
  • Fleece pants
  • Warm mittens
  • warm balaclava
  • ski goggles - amber tint is the best in whiteout
  • Map of Muir snow field with compass bearings
  • GPS and/or wands
  • Warm hooded parka - synthetic is best (Patagonia DAS, Wild Things Belay Parka or similarly warm parka)

Contingency Plans
Mt Rainier is magnet for winter storms. Rainier can be getting nuked while other mountains, especially those east of the crest, are enjoying relatively descent weather. On the other hand, Mt Rainier is a big mountain and one can some times get above the cloud layer and enjoy warm, sunny conditions while everything else is socked in.

If you are traveling to attempt Rainier in winter allow more time than you think you need. This will give you a better chance of getting a window of good weather. Make alternate plans should Rainier be getting hammered. There are many small ski resorts and good back country skiing (if avalanche conditions allow) if that is your bag. Reliable ice climbing can be found in and around Lillooet, BC about 6 hours north of Seattle. Great mixed alpine climbing can be found in the Stuart Range which due to its position east of the crest can have better weather. Dragontail, Colchuck, Argonaut Peaks and Mt Stuart all offer reasonable winter access and routes ranging in difficulty from easy to hard.

Random Tips

Plan your climb, and climb your plan
Start your days early so you roll into camp with plenty of time to relax, rehydrate, and acclimatize. Start your summit day early. It is far preferable to begin climbing in the dark than to finish in the dark. Aim to be off of the glaciers before the high altitude sun bakes the snow into a sloppy mess, ideally before noon. Aim to leave camp by 3 am at the very latest; many parties leave at midnight. Expect to take at least an hour getting ready and plan your wake up time accordingly. Pace yourself. You will spend the better part of every day working towards your goal. Be the tortoise, the hare will burn out.

Personal maintenance
Drink more than you think you need and before you feel thirsty. Staying hydrated will help with altitude acclimatization. Water bladders with hoses make this easy, but be aware that water can freeze in the tube. Take precautions to prevent this. I find that having something flavorful helps me to drink more. Pack tea, instant soup, hot Jello, electrolyte sports mixes, etc. Apply sun screen to all exposed skin frequently. Don’t forget the lips and the bottom of the nose. Keep your feet dry and don't let hot spots on turn into blisters. Keep your boots laced properly

How's da wedder?
Watch the weather and never climb up into a storm. As a general rule of thumb, storms come from the north in summer and the south in winter. Conversely, if your intended route climbs under or through rock bands, make sure the temperatures will remain cold enough to keep the rock frozen together.

If you are staying in the public shelter at Camp Muir be mindful and courteous of fellow climbers. Don’t smoke in the hut, turn the fans on when cooking, keep your voices low when others are sleeping, and clean up after yourself. Don't leave your left over food for the next climbers, it will attract mice.

External Links

NPS Web page about climbing regulations for Mt. Rainier.

Current avalanche forecasts.

Mt Rainier weather forecast

Printable map of Muir snowfield with compass bearings (.pdf)

Trip report from a winter attempt by MVS.


Post a Comment
Viewing: 1-20 of 25

mvs - Apr 20, 2009 1:46 pm - Voted 10/10

Awesome Dan!

Great knowledge sharin'. I would also mention the importance of walking down from Camp Muir in the right direction. People should know that traveling straight downhill leads to the Nisqually. You need to angle leftward for a long time. I was on a winter attempt where a guy didn't know this and zoomed ahead of us straight downhill. We couldn't get his attention in the "ground blizzard" for a really long time. Kind of stressful.


JanG - Apr 20, 2009 8:27 pm - Voted 10/10

Nice Report

Your sound advice is very relevant for those attempting the climb without guides. It should be noted that for those mountaineers wishing to use a guide for the climb (always the best way for newcomers to the area) Rainier Mountaineering has almost exclusive monopoly!

This option implies booking long before (months or even the year before) and RMI also demands participation in the compulsory snow & ice training course on the day before the actual climb. Their guides are very experienced but the climb itself can be very regimented (almost reminds of "boot camp"). Nevertheless it is the safest way to avoid weather related disasters!


Dmitry Pruss

Dmitry Pruss - Apr 27, 2009 12:43 pm - Voted 10/10

Links to routes are hanging

due to an extra "http://". Nice work otherwise, I would mention the rough estimates of days to allocate for this.


ExcitableBoy - Apr 27, 2009 2:43 pm - Hasn't voted

Links to routes are hanging

Thanks for the heads up on the links, I fixed them.


rpc - Apr 29, 2009 4:21 pm - Voted 10/10


when people with the experience/know-how choose to share. very useful article.


ExcitableBoy - Apr 29, 2009 9:06 pm - Hasn't voted


Thanks so muc rpc! That means a lot coming from you!


welle - Apr 30, 2009 10:54 am - Hasn't voted

What type of Tent in August?

Thanks a lot for the article! I have a question re: gear.
I'm planning on a self-guided climb in late August via DC. My question is, do I need a 4-season tent, or 3-season would be sufficient to camp either at Camp Muir or Ingraham Flats? Don't want to bring any unnecessary weight... TIA! Or do you think I have a fair chance to get a spot at the public shelter at Camp Muir?


ExcitableBoy - Apr 30, 2009 11:47 am - Hasn't voted

Tent in August

Hello welle,

Getting a spot in the public shelter during the height of the season, especially on a weekend, is a crap shoot. I would recommend bringing a tent with you and when you register for the climb at the Ranger station you can find out if there is room left. Then you can make a decision whether or not to pack the tent.

Camp Muir and Ingraham Flats are both somewhat sheltered so if the weather is not completely terrible you can get away with a 3 season tent. August typically has very stable weather. I personally use a tarp (Black Diamond Betamid) on Rainier, however, I insist upon good weather for my climbs, something I can do since I live within 2 hours of the mountain.

Best of luck on your trip!


welle - May 1, 2009 10:57 am - Hasn't voted

Re: Tent in August

Thanks, EB! I noticed both Alpine Ascents and RMI list avalanche transceivers on their gear lists even for their Camp Muir-DC routes. Are avalanches an issue in August? Thanks again.


ExcitableBoy - May 1, 2009 12:08 pm - Hasn't voted

Avalanche transceivers

Avalanches can and have occurred during the summer months. A few years ago a party was descending the cleaver when the uphill climber caused an avalanche that swept several members of the rope team off the cleaver.

That said I personally do not wear an avalanche transceiver except in the winter.


rlshattuck - May 2, 2009 4:17 am - Hasn't voted

bottom of the nose?????

why the hell didn't you tell me this earlier? Ha! . . . yeah, I knew all about the bottom of the nose, but . . . Just did Rainers' little brother (or cousin?) to the south, SHASTA and for some reason, did not apply sunscreen all the time, but once. I am paying for it now with a face that feels dry and painful when I move it and my nose too the worst of it. Ouch! great write up and will certainly go , 'hard copy' and into my file. thanks

kwiatek - May 3, 2009 11:32 am - Hasn't voted

speed of a sprinter?

Cool article. (but)
I'm not experienced at all, but why exactly do you need speed to climb this (or any other) mountain?
Sprinter's speed, as I understand it, is extreme speed you can use only for a very short time. Do you need to make a sudden "rush" at any point in the climb?


ExcitableBoy - May 3, 2009 12:09 pm - Hasn't voted


I do not necessarily mean running fast, but the ability to work at (and beyond) your aerobic threshold and recover quickly. On Rainier there are definitely situations that call for short bursts of hard effort, for example post holing at 14,000 feet or pulling over the bergschrund below Liberty Cap. Developing the power and the ability to quickly recover from hard effort is a necessary component of climbing mountains. Furthermore, the more speed and power you have the easier it will be to slog at a sustained pace. I urge you to read Extreme Alpinism, Climbing Light, Fast, and High by Mark Twight for an excellent treatise on training for alpine climbing.

kwiatek - May 3, 2009 1:32 pm - Hasn't voted

Re: speed

thanks for the info and reference. I'll definitely read it.

Rob Ricks

Rob Ricks - May 5, 2009 5:16 am - Voted 10/10

NW Icon

Thanks for the outstanding summary. Rainier is why I started climbing. Like for many PNW climbers it will always be a part of me. RR

Brad Marshall

Brad Marshall - May 13, 2009 3:14 pm - Voted 10/10

Nice Article

Good job ExcitibleBoy. Very interesting and straightforward information. Nice gear list.


ExcitableBoy - May 18, 2009 10:11 am - Hasn't voted

Re: Well done

Thank you! This was my first article and all the postive feed back has been wonderful!


TJ311 - May 24, 2009 1:38 pm - Voted 10/10

Rainier is on my list

And this article will definitely be of use when I start preparing for my trip. Thanks for all the great info.


cbcbd - May 27, 2009 3:49 pm - Voted 10/10

Succint... the point.
Said it all in few words. Good stuff!

FireOnTheMountain - Jan 25, 2012 2:02 pm - Hasn't voted


Thank you very much for the article and the fact that you touched upon winter is awesome! Just a little curious, you got any other tib bits of advice for a winter ascent? I am a fairly competent and experienced mountaineer here in CO and we are looking to do a winter ascent this March. We will be covering the basics like avy danger and crevasse rescue. Thanks a bunch!!

Viewing: 1-20 of 25



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