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Ski a classic traverse from Mammoth Mountain to June Mountain

This tour is a 2-day ultralight objective that allows plenty of time to enjoy quality descents along the way. The route depends on what conditions dictate to the north and east, but your guide will make sure you find plenty of powder in this incredible terrain. Camp for the night in the scenic and wild upper Deadman Creek drainage, and then finish your adventure off with summiting San Joaquin Mountain. The final descent is an impressive 4000′ to the June Lake area where all the comforts of the Double Eagle Resort & Spa await. This tour makes for a perfect introduction to a multi-day backcountry adventure.


Explore the backcountry area between Mammoth Mountain and June Mountain resorts on this 13-mile traverse. This two-day tour allows plenty of time to enjoy both downhill runs and mesmerizing scenery at your own pace! Let your guide take you through incredible terrain, where all the powder stashes are found. Camp in the scenic Deadman Creek drainage or spice up your skiing adventure and descend right from the summit of San Joaquin Mountain. If you are trying to find the perfect weekend getaway, then this tour is your ideal choice!

  • Meet your guide in the early morning at Mammoth Mountain. Check equipment and finalize packing. Then, from Main Lodge, you’ll skin up the closed road to Minaret Vista. From there, the tour follows the San Joaquin Ridge north with spectacular views of the Minarets and the Ritter Range, as well as the headwaters of the Owens River to the east. Just before Deadman Pass, you’ll drop in to the northeast for a 1000′ powder run. From there, you’ll climb back to the ridge to find another 1000′ run before finding camp in upper Deadman Creek.

  • You’ll start your second day passing east of the imposing Two Teats on the way to the summit of San Joaquin Mountain. Descend right from the summit and drop down one of several options like Positive 1, the Hourglass, or the Negatives to Upper Yost Meadow. From there, the plan is to descend gently via Yost Creek and then descend via the 4 Seasons run or possibly Devil’s Slide to finish at the Double Eagle Resort. You can arrange to spend the night in the June Lake area or shuttle back with your guide to Mammoth.

Meet your guide

SWS Mountain Guides
SWS Mountain Guides
SWS Mountain Guides has been in continuous operation since 1981 and is one of the oldest backcountry mountain guiding companies in California. Their quality of instruction and guidance rests in their organizational strength, commitment to safety, and quality of our guides. SWS operate the broadest range of programs in the most venues in California. They lead summer and winter adventures at Mt. Shasta, North Palisade, Temple Crag, The Incredible Hulk, and much more!

Things to know

  • 57hours is committed to providing safe outdoor adventure experiences. We require all guides using our platform to have a COVID-19 safety plan and to make the details of that plan accessible to travelers. In most cases, group sizes will be reduced, guides will avoid overcrowded locations, and other safety measures will be met depending on the location and activity.

    We also expect clients to respect local regulations and take measures to protect themselves, guides and the communities they’re travelling to. For more information on COVID-19 measures in Mammoth Lakes and June Mountain, please refer to Visit Mammoth, June Mountain or the Official California State Government websites.

    Please contact us if you have any questions or require further information. We are happy to provide you with the most up-to-date information!

  • With us, it’s all play and no work for you! 57hours is an open platform that connects you with trained and certified outdoor adventure professionals all over the world. Using our tech-savvy, we make it super easy to find and book adventures worth tackling, with guides worth booking, all gathered from the first-hand experiences of the locals who adventure in these amazing locations.

  • Nothing beats the rush you’ll get from laying down first tracks on an incredible route with nothing but endless terrain laying before you. Alpine peaks, open bowls, steep and secluded tree shots, cruisy, mellow runs — it’s all out there waiting to be explored in the backcountry. You’ll spend less time waiting in chairlift lines and more time skiing, so leave the crowded resort behind and head off-piste for some of the best powder you’ll ever experience!

  • A certified ski guide will take all of the guesswork out of your time in the backcountry. From tour planning to route selection, terrain management, avalanche safety, and gear knowledge, your guide’s expertise and backcountry experience will ensure you have an unforgettable ski touring adventure. It doesn’t matter your skill level, whether you’ve never backcountry skied or you’re seasoned on the slopes, skiing with a guide has its advantages. Your techniques will sharpen, you’ll learn how to navigate terrain safely, make smart decisions, and most of all, you’ll remain safe in unfamiliar terrain.

  • The overnight Mammoth to June Traverse is best suited for intermediate to advanced skiers with experience in the backcountry. These are long ski touring days and the terrain can be challenging and technical, requiring controlled descents in sometimes tricky environments.

    Beginners in the backcountry or those with blue level resort experience should consider an introduction to backcountry skiing with a guide at Mammoth Lakes or June Mountain.

  • What you get in this adventure:

      • An certified AMGA Ski Guide with extensive knowledge of the area
      • Two full days of backcountry ski touring
      • Avalanche rescue gear (beacon, shovel and probe)
      • Group camping equipment
      • Shuttle service back to Mammoth at the end of the the trip

    What’s not included:

      • Technical backcountry ski touring equipment
      • Personal overnight gear
      • Lodging and transportation to and from the Eastern Sierra
      • Trip insurance
      • USFD required backcountry permits ($10.00 per person)
  • In order to enjoy this backcountry adventure, you need to have an excellent level of fitness. You will be on your feet for two full days. All participants should be able to carry a loaded daypack while skinning up variable degrees of terrain and have advanced to expert level downhill skiing skills, as well as the ability to control speed and execute fall-line turns in a variety of snow conditions. All participants must be able to sideslip forwards and and backwards and have a high level of control on 40 degree slopes.

  • For technical backcountry ski touring gear, you will need to bring:

      • Alpine touring skis, telemark skis or splitboard with skins (can be rented)
      • Touring boots and poles (can be rented)
      • Avalanche gear: beacon, shovel, probe (included in price if you don’t have your own)

    For personal items, we recommend bringing:

      • Helmet
      • Sunglasses or ski goggles
      • Gloves and hat
      • Wind and waterproof shell jacket with hood (Gore-tex recommended)
      • Down jacket or vest
      • Ski pants (Gore-tex recommended)
      • Synthetic or wool base layers, underwear and socks
      • One triple-action locking carabiner or two conventional locking carabiners
      • Repair kit and Leatherman for your equipment (can be shared between several people)
      • Water bottle and 1L of water
      • Thermos with a warm beverage — optional
      • Food you can eat on-the-go
      • First-aid kit
      • Sunscreen
      • Daypack large enough to carry all items listed (around a 30-40L backpack)
      • Camera — optional
  • All mandatory gear can be rented if you don’t have your own. You can rent:

    Ski rental locations are in Mammoth Lakes and should be picked up the night prior to your outing. If you need to rent gear, let us know and we can help make arrangements.

    • Everybody over the age of 18 is welcome to book this backcountry skiing adventure.
    • Minors may be permitted to join private tours on a case-by-case basis. If you plan to ski with anyone under the age of 18, please contact us prior to booking to make arrangements.
  • For this adventure, the minimum client to guide ratio is 2:1 and max client to guide ratio is 4:1. All pricing is per person.

    Ski touring from Mammoth Mountain to June Mountain can be arranged for larger groups. Contact us to make arrangements.

  • Mitigating avalanche risk is paramount for any excursion in the backcountry — that’s why it’s best to tour with a guide! Rest assured, your guide will set objectives that are attainable for the weather conditions on that particular day. Of course, inclement weather can always get in the way of backcountry skiing, but your guide will know the best course of action to take if the weather takes a turn.

    On the rare occasion of truly bad weather, your guide will present you with suitable, safe alternatives. The most common practice is to move to a nearby location if it exists, or to reschedule your backcountry ski tour to a more favorable day.

    If backcountry skiing is not possible on your scheduled day and no options presented are viable, you will be issued a full refund.

  • We highly recommended that you cover all your bases with emergency medical insurance. With medical insurance, if you have an accident or medical emergency on or off the mountain, you’ll avoid paying out of pocket for costly expenses. This covers everything from hospital treatments to emergency air transportation and more.

    If you need assistance selecting the right insurance for your group, let us know and we will be happy to help!

  • The most convenient way to get to Mammoth Lakes is to fly into Mammoth Yosemite Airport (MMH). Los Angeles, Burbank, Denver and San Francisco offer direct flights. Another option is to fly into Reno-Tahoe International Airport (RNO) which is only 2.5 hours away from Mammoth Lakes. From there you can rent a car or take a shuttle.

    Once you and your guide agree on the details of your itinerary, your guide will suggest the best place to meet, whether that’s at the guide shop or a predetermined location and from there you will go through a quick gear check as well as a quick avalanche beacon refresher. From there, the group will head out to the tour, where we will quickly get into touring mode and start stretching the legs for the uphill ascent.

  • With 57hours, you benefit from both our own cancellation policy as well as that of the individual guiding service that delivers your adventure. All policies regarding cancellation will be clearly laid out by your guide after booking your adventure, but rest assured that our own cancellation policy will work on top of what is provided by your guide.

    For this adventure, 57hours offers a Strict Cancellation Policy, which states:
    If Client cancels the Booking anytime prior to thirty (30) calendar days in advance of the trip contemplated by the booking, Client is entitled to a refund in the amount of fifty percent (50%) of the total amount paid when Booking. After that deadline, Client is not entitled to any refund.

    For more information on terms and conditions, please visit our Terms of Service page.

Have more questions? Read our FAQ,

Trip Highlights

Spend two days traversing the thrilling and mesmerizing off-piste terrain between two famous resorts and let your guide take you to the best powder stashes in the state. The tour combines exciting slopes and epic 1000-feet-long powder runs with beautiful and spectacular views of the surrounding mountains. Explore the untracked terrain of Mammoth and June, and spend the night camping in the Deadman Creek. The adventure awaits!

From $750 ()
/ 2 days
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