“Sourdough” Dogsled Expedition

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Join us on the centennial of the first ascent of Denali for a unique climb in the footsteps of the pioneers!

From 1906-1908, Harry Karstens and Charles Sheldon made forays toward the north side of Mount McKinley. Two years later, their reconnaissance paid off when Tom Lloyd, Charley McGonagall, Billy Taylor, and Pete Anderson left Fairbanks with loaded dogsleds in what was to become known as the Sourdough Expedition of 1910.

These four intrepid pioneers discovered a key pass to access the Muldrow Glacier and pushed up the glacier to a camp at about 11,000 feet. Their legendary 18 hour summit day, fueled by a thermos of coffee and a bag of doughnuts, dragging a 14 foot spruce pole, is legendary. They picked their way through icefalls and up Karstens Ridge to plant the pole on the North Summit of Denali.

In 1913, a team led by Hudson Stuck followed the Sourdough’s route to make the first ascent of the South Summit, the highest point in North America.

On the 100th anniversary year of the first ascent of Denali, Mountain Trip is excited to offer a select few climbers the opportunity to get a taste of what the original pioneers experienced. We have joined forces with Denali Dog Sled Expeditions, which operates under a concession contract with Denali National Park out of the Earth Song Lodge in Healy, AK to enable you to climb Denali via a dogsled approach!

This is a highly challenging and committing trip that should only be considered by a very fit mountaineer. The first day will be spent learning to mush a dog team with Jon Nierenberg, a professional musher and owner of Denali Dog Sled Expeditions. Jon has been mushing in the area since 1982 and in the Park since 1985. Depending on conditions, the next 4-6 days will be spent traveling through the northern portion of Denali National Park with climbers mushing their own teams of dogs. We will say good bye to our sled dogs at Cache Creek and hike up McGonnagal Pass to our cache of mountain food and supplies that we mushed in earlier in the winter. From this point we will climb through the icefalls of the Muldrow Glacier and up Karstens Ridge to our high camp on the Harper Glacier. After summit day, we will descend the West Buttress Route to fly out in ski planes from the Southeast Fork of the Kahiltna Glacier.

Any climb of the north side of Denali is a serious undertaking. A north side climb in April is an even more serious endeavor.  Using sled dog teams to get us across the tundra adds an element of authentic Alaska that is not necessarily found on most Denali expeditions.  When traveling with the dog sleds, you will also have access to a heated tent, which will help ease your transition to the colder temperatures of early season.  Once we start the climbing portion of the expedition, we will rely on our modern clothing systems, clear team communication and conservative decision-making to help mitigate the cold.  By traveling early in the season, we should be able to cross the McKinley River while it is still frozen and eliminate one of the most hazardous elements of a north side climb.  The timing of this trip puts us on schedule to summit about the same time as will early season West Buttress expeditions.

The remote nature of this expeditions requires us to be very selective in who we enlist on the team, and team size will be limited to four to six climbers and two guides. This is an expedition unlike any other on Denali and we are very excited to offer it. Please call us to inquire about specifics.

“This was, hands down, the coolest trip I have ever done!”
-Zach Shlosar, MT Senior guide

Training Climbs

The West Buttress of Denali would be a great warm up for this chilly expedition.
Follow Up Climbs

Mount Vinson – If you’ve climbed the north side of Denali in April, Antarctica should feel tropical!


Day 1: Training day at EarthSong Lodge (Stampede Road)

Day 2: Depart Earth Song Lodge, travel 28 miles to the Sushana River Cabin along Stampede Trail, passing by the bus from the book and recent movie, “Into the Wild.”

Day 3: Mush from the Sushana River Cabin to the Lower Toklat Patrol Cabin, 22-38 miles (depending upon trail conditions).

Day 4: Mush from the Lower Toklat Cabin to the Upper Toklat Cabin on the Park Road Corridor, 25 miles on the Toklat River and traversing the Toklat Narrows.

Day 5: Mush from Upper Toklat to Thorofare Gorge or McKinley River, making camp after 17-30 miles.

Day 6: Camp to Wonder Lake and Kantishna, pick up assistant sled guide (to return with dogs after dropping off guests) and two Mountain Trip guides who will ski-jour behind the sleds to McGonnagal Pass.

Day 7: Wonder Lake to Cache Creek, from where the mushers will return to Wonder Lake.

Day 8: Mushers return east with dog teams, climbers head up over McGonnagal Pass onto Muldrow Glacier, to collect our cache of food, fuel and mountain equipment that we dog sledded in earlier in the season.

Day 9: Carry to base of Lower Ice Fall

Day 10: Move to Camp 1 at Lower Ice Fall

Day 11: Carry to base of “Hill of Cracks”

Day 12: Move to Camp 2 at Hill of Cracks

Day 13: Carry to Camp 3 above the Great Icefall

Day 14: Move to Camp 3.

Day 15: Carry to base of Karstens Ridge

Day 16: Move to Camp 4 at base of Karstens Ridge

Day 17: Carry to Camp 5 on Karstens Ridge (Corral Camp)

Day 18: Move to Corral Camp

Day 19: Carry to Browne’s Tower

Day 20: Move to Camp 6 at Browne’s Tower

Day 21: Carry to top of 1st Harper Glacier Icefall, by Sourdough Gully.

Day 22: Move to Camp 7

Day 23: Carry to High Camp

Day 24: Move to High Camp on upper Harper Glacier.

Day 25: Rest Day

Day 26: Summit Day

Day 27: Move over Denali Pass and down to the 14,200 Camp on the West Buttress.

Day 28: Descend to Kahiltna Base Camp.

Day 29: Fly to Talkeetna and drive to Anchorage.

Days 30-34: Contingency days

Guide Tips

Coming soon

Equipment List

The following is a list of required gear for climbing the Muldrow Glacier route with Mountain Trip. Many of the items on the list need to fit you well in order for you to fully enjoy your experience on the mountain. Please plan ahead with equipment purchased for your trip so you can be certain that your gear fits you well. The Hill of Cracks is not the place to discover that your pack is too small for your torso, or that your boots give you blisters. Recommended items reflect the opinions of our guides, but they may not necessarily fit you. They are also weighted toward a couple companies that are industry leaders in exhibiting environmental and social consciousness.

Call or email us with any gear questions. We want you to be as prepared as possible for your expedition.

Items with ** are optional, but recommended.


  1. MOUNTAINEERING DOUBLE BOOTS: Acceptable boots for Denali fall into two categories, traditional double boots and boot systems with integrated gaiters. Either variety works well, however the latter versions are lighter and arguably simpler. The goal is to have warm, comfortable feet! Try on a variety of boots as they all fit differently and get the one that fits well. Consider your future mountaineering objectives when purchasing boots as well.
  2. Recommended System Boots: LOWA “8000 GTX ”, LA SPORTIVA “OLYMPUS MONS EVO”
  3. Recommended Double Boots: SCARPA “INVERNO” with High Altitude Liners, LA SPORTIVA “NUPTSE” OR “SPANTIK”. A great upgrade to any plastic boot are the Denali Liners by Intuition. These are lighter and warmer than almost any stock liners. They are heat molded to fit your feet and are worth every penny. *** All double boots need Overboots and Gaiters, including the Spantiks
  4. OVERBOOTS: Neoprene overboots such as 40 Below Purple Haze are best. O.R. and Wild Country insulated Overboots work well if they fit with your crampons. Supergaiters alone are not warm enough for Denali.
  5. GAITERS: Full height, such as Black Diamond GTX Frontpoint Gaiter or Outdoor Research “Crocodiles.” Full coverage “Supergaiters” work great as well.
  6. BOOTIES**: Synthetic or down fill booties. These are great for camp and tent comfort and allow you extra opportunity to dry out your mountain boots.


  1. SNOWSHOES: Atlas Summit Series or the basic MSR Denali both work well, although a nice “upgrade” feature is a heel riser, which really helps make the steeper hills a bit more manageable. 22-25 inch snowshoes will generally work fine. ___
  2. SKI POLES: Select a proper length for hiking. Almost any ski pole will do, although adjustable poles work best! Black Diamond Flick Lock poles are recommended as they are less prone to spontaneously collapsing.

CLOTHING You will need a total of five (5) layers for your torso and four (4) for your legs:

  1. BASE LAYER: (1 or 2 sets) Synthetic Top and Bottoms such as Light or Mid-Weight Capilene from Patagonia. There are some really nice Merino wool options on the market as well. Patagonia has a nice entry called Wool 2.
  2. “EXPEDITION WEIGHT” FLEECE: Top and Bottoms made from 100 weight or Powerstretch fleece. A zip t-neck is important for ventilating. Guides’ Pick: Patagonia R1 Flash Top or the R1 Flash Hoody.
  3. STRETCH WOVEN PANTS: We used to consider this layer optional, but this “Soft Shell” layer is becoming indispensible, due to the broad comfort range it provides. Often pants made of Schoeller Dynamic or similar fabrics can be worn all the way to High Camp in lieu of less breathable “hard-shell” pants. Guides’ Pick: Patagonia Alpine Guide Pants
  4. FLEECE OR INSULATED PANTS: This layer must have side zippers! The best options for this layer are thick, “puffy” synthetic or down pants like the Patagonia Micro Puff Pants or Feathered Friends Volant Pants. These can be layered over your shell pants for easier and quicker layer changes.
  5. PRIMALOFT “PUFFY” JACKET: Size this to fit over your shell. We are fans of the puffy, Primaloft jackets because they are lighter and warmer than fleece and compress down much smaller. Guides’ Pick: Patagonia Micro Puff Hooded Jacket or the Outdoor Research Chaos Jacket
  6. SHELL JACKET & PANTS: They should be large enough to go over your pile clothing layers and the pants must have full lenght side zippers. These do not need to be the burliest Gore-Tex pieces you can find! Many people are climbing Denali using lightweight, windproof, water resistant shells.
  7. EXPEDITION PARKA (WITH HOOD): Marmot, Mountain Hardwear and The North Face all make good parkas, but our Guides’ Pick is the Patagonia Down Parka. There are some synthetic options such as the Patagonia D.A.S. Parka and the Wild Things Belay Jacket, however; down is recommended as it is lighter and less bulky.
  8. VEST**: Fleece, puffy or down vest adds warmth to a light Expedition Parka. (OPTIONAL)
  9. T-SHIRT**: Synthetic long sleeve shirt for the lower glacier. Synthetics dry faster than cotton!
  10. REGULAR UNDERWEAR: One or two changes. Look for synthetics such as Patagonia Capilene.
  11. SOCKS: 2 – 4 sets of wool or synthetic medium/heavy weight socks. Make certain your socks fit with your boots!
  12. GLOVES: Light or medium weight bunting, polypro, Windstopper or even better: Schoeller fabric (one or two pairs.) Guides’ Pick: Outdoor Research Vert Gloves
  13. INSULATED GLOVES: Warm, insulated gloves are the workhorse on Denali. Black Diamond Guide Gloves have removable liners for ease of drying. It’s hard to stress how much you’ll be wearing these, so do not skimp on this item.
  14. SUMMIT MITTENS: Thick, warm, non-constricting mittens made of pile, Primaloft or down. Guides’ Pick: Outdoor Research Alti Mitts. They aren’t cheap, but are extremely warm. Divide the cost by 10 digits and they’re a bargain!
  15. WARM HAT: One warm hat or two hats of different weights. Wool or pile is fine. Your hat must provide ear protection.
  16. FACE MASK: Neoprene or Windstopper work equally well.
  17. SUN HAT: Baseball type or wide brimmed sun hat for the intense sunshine of the lower mountain. You can combine a baseball hat with a bandana for good sun protection
  18. HAND WARMERS: Bring 8+ sets of these disposable insurance policies.
  19. GLACIER GLASSES: They must have side protection and filter 100% UVA and UVB rays.
  20. SKI GOGGLES: For use while traveling during storms or during really cold spells.These must have double lenses and provide 100%UV protection.


  1. EXPEDITION PACK: Unfortunately, it is getting harder to find a good expedition-sized back pack. Denali requires a 6000+ cu in. or 90+ liter pack to carry your gear, plus group food & equipment. The Dana Designs Terra Plane, Gregory Denali Pro and Osprey Aether 90 all fit the bill. BE CERTAIN THAT YOUR PACK FITS YOU! Get used to your pack; train with it!
  2. LARGE ZIPPERED DUFFEL: (36-48″) for use as a sled bag. Lightweight and inexpensive bags work fine, although if you can find the Patagonia Stellar Black Hole Bag you will be thrilled. It is lightweight and darn near water proof, making it the ideal sled bag!


  1. EXPEDITION SLEEPING BAG: Rated to 30 below. Marmot Cwm, Col and Mt Hardwear Ghost are all great bags. Which to choose, down or synthetic? We prefer down bags because they are lighter, more compact, and have a longer lifespan than synthetics, but the new synthetics are getting a lot better. Guides’ Pick: Weighing in at just 4 pounds, the Valandre Odin is a -40 degree bag which is also suitable for Antarctica. It’s lighter companion, the Freja, is a -22 degree bag that only weighs 3 lbs 6 oz!
  2. COMPRESSION STUFF SACK: Granite Gear and Outdoor Research are both making nice, lightweight compression sacks. These are essential for sleeping bags and recommended for your summit clothes, such as your parka, mitts and warmest pants, so you might consider bringing two.
  3. 2 SLEEPING PADS: You need two pads, with one being a closed cell pad such as a Ridge Rest or a Karrimat just in case you poke a crampon through your air mattress. Therm-a-Rest inflatable pads have been among the warmest and most comfortable, but the new Exped pads from Outdoor Research are really nice. Guides’ Pick: Exped 7 paired with a Deluxe, Full-length Ridge Rest


  1. ICE AXE: (with leash) 70-80 cm length works well for the West Buttress and go 10-20 cm shorter for technical climbs. Guides’ Pick: Black Diamond Raven Pro
  2. CRAMPONS: 10 or 12 point crampons that FIT YOUR BOOTS! Step in or “New-matic” work equally well, just make sure they fit with your mountain boots and overboots. Fit is especially important with overboots! Black Diamond Guides’ Pick: Sabretooth Clip with ABS
  3. HARNESS: Your harness needs to have adjustable leg loops. Black Diamond Blizzard or Alpine Bod harnesses are both lightweight and functional.
  4. ASCENDERS: You need at least one full-sized ascender such as the Petzl Ascension. This can be paired with a second, handled ascender or with a lighter weight version such as a Petzl Tibloc, a Wild Country Ropeman or simply bring a prussik cord for your feet. If you opt for only one full sized ascender, consider bringing a left-handed one for ease of use on the fixed lines.
  5. CARABINERS: Bring two large locking carabiners and eight regular carabiners. Please do not bring “bent-gate” carabiners. These have certain limitations that do not make them appropriate for how we will use them. Mark them with colored tape for identification. Guides’ Pick: Black Diamond Neutrinos are very lightweight.
  6. PERLON CORD: 50 feet of 5 or 6 mm for sled and pack tie offs.
  7. CLIMBING HELMET: Unfortunately, even Alaska is not beyond the reach of Global Warming and there is now a stretch of the West Buttress route that necessitates the wearing of a climbing helmet. Get the lightest one you can find and make certain it fits over your warmest hat and under the hood of your shell. Guides’ Pick: Black Diamond Tracer


  1. NOSE GUARDS: Beko makes nice nose protectors that keep the wind and sun from wreaking havoc on your skin.
  2. STUFF BAGS (for your own items plus one large one for a cache bag)
  3. CAMELBACK HYDRATION SYSTEM (optional, but if you bring one, also bring an insulated tube and mouthpiece) This DOES NOT replace your Water Bottles!
  4. (2)ONE QT. WIDE MOUTH WATER BOTTLES: Please do not bring metal bottles or small mouth bottles.
  5. INSULATED COVER (1or 2 for your water bottles).
  6. LARGE PLASTIC CUP OR BOWL for eating (2-4 cup measuring bowl or Rubbermaid storage bowl work fine)
  7. INSULATED CUP 12 or 16 ounce plastic cup for hot drinks
  9. 2 SMALL LIP BALMS (WITH 30+SPF): Two small tubes are easier to keep from freezing than one big tube.
  10. SUN SCREEN 3-4 OUNCES- two to four small tubes work better than one large tube
  11. TOILET PAPER: 1 or 2 rolls, depending on your technique
  12. TOILET KIT (Tooth brush & paste, floss, Handi-wipes,… keep it small)
  13. P-BOTTLE Wide-mouth, collapsible Nalgene Cantenes work great- they make a 96 ounce version! Ladies- look for an appropriate adapter available at your local outdoors store. These items are both tough to find in Anchorage so plan ahead!
  15. CAMERA, with lots of film or digital and no film
  16. BOOK(s) for storm day reading
  21. MAPS
  23. NECK GAITOR (check out the light weight versions from Buff)
  27. EXTRA ACCESSORY STRAPS** (generally only needed for smaller sized packs)
  28. PERSONAL MUSIC PLAYER (CD, MINI DISC, MP3 PLAYER, ETC with extra batteries)
  29. CELL PHONE (Due to antiquated cell phone infrastructure in this part of Alaska, only a small number of phones actually work from Denali. As of 2006, only phones capable of receiving ANALOG signals could function from the mountain.)


  3. TRAIL RUNNING or LIGHT HIKING SHOES (For river crossings and the walk out to Wonder Lake)


  • SNOWSHOES ($50)
  • SKI POLES ($15)
  • CRAMPONS ($30)
  • ICE AXE ($25)
  • ASCENDER ($25)
  • EXPEDITION PACK ($50-$100)


And you get a 10% discount. Check out their Web site: www.alaskamountaineering.com or call 907 272-1811.

Feathered Friends in Seattle will also give you a 10% discount if you tell them you are joining one of our expeditions.



Contact Mountain Trip: PHONE: 866-886-TRIP (8747) inside the US or +1-970-369-1153 | EMAIL: [email protected]

FAX: +1-303-496-0998 | P.O. Box 658 | Ophir, CO 81426 | © 2015 Mountain Trip | Site by Dayzign Graphics