John Collis

John Collis

Guide: Washington, Alaska, International

Since discovering a passion for climbing while getting his Bachelor’s degree in Geology at Colorado College, John has spent time traveling and climbing across parts of Africa, the Andes, Southeast Asia, Canada, the Rockies, and the Cascades. When not in Washington, John calls Moab, Utah his home and can be found exploring its canyons and desert towers.

Guide For:

Aconcagua
Denali

Significant Ascents

Denali
Mt. Rainier via DC, Emmons, Kautz
Mt. Baker
Forbidden Peak
Dragontail Peak
Zodiac, El Capitan
Mt. Proboscis and Lotus Flower Tower, Cirque of the Unclimbables
The Grand Traverse, Tetons

Certifications

WFR/CPR
AMGA Single Pitch Instructor
AMGA Rock Guide
AIARE Level II

amga-spiamga-rock

This was an extremely well-run, well-organized expedition. Time and again we saw our guides make judgment calls which were clearly vindicated compared to other group’s decisions.

ALPINE ASCENTS BLOG

  • Puffy

    Down Fill-Weight vs. Down Fill-Power: Why the Latter Doesn’t Matter

    How exactly can you shop for a down jacket…and be confident it’s going to be warm enough? Here, we break down one aspect of down jacket selection. Alternatively, check out the insulation we offer for men and women, and email us with your questions. How much down is in this jacket? The key question to […]

  • Boots for Mount Rainier: Singles or Doubles?

    Easily the most common question we are asked is, “What kind of boots will I wear on my Rainier climb?” Here, we break down how we decide. Two Boot Types We use two main types of boots in Washington’s Cascades Range, which includes Mount Rainier and Mount Baker among other peaks: double boots and single […]

  • Bigr

    The Notebook: When Should I Climb Rainier?

    Alpine Ascents climbs Mount Rainier from May through September. We are often asked which dates to choose, so here we break down the merits of each month. Mount Rainier’s Climbing Season(s) Mount Rainier can be climbed year-round. For climbers willing to adventure, even the more challenging shoulder seasons can provide interesting climbing or skiing. A […]

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Alpine Ascents International is an authorized mountain guide service of Denali National Park and Preserve and Mount Rainier National Park.
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