Access Mammoth Sierra Summer Challenge cyclist group photo.

Sierra Summer Challenge

CalendarJuly 5—July 19

locationMammoth Lakes, CA

Register for Fundraiser

Overview

Go the distance for adaptive mountain sports in the Eastern Sierra.

The Sierra Summer Challenge is back — and this year, we’re inviting our community to help Move Mountains Together.

From July 5–19, participants from across the country will hike, bike, paddle, climb, walk, roll, swim, garden, or create their own challenge in support of adaptive recreation and inclusion through Access Mammoth.

This peer-to-peer fundraiser is designed for every body and every ability level. Whether you’re logging miles on the trail, taking daily walks with friends, or challenging yourself to something new, every activity helps create access to life-changing outdoor experiences for individuals with disabilities.

Every dollar raised supports:

  • Adaptive equipment
  • Participant scholarships
  • Specialized instruction
  • Year-round programs
  • Inclusive outdoor experiences for children, adults, veterans, and families

Join as an individual, create a team, or support a participant from wherever you are. Together, we can help more people experience the freedom, confidence, joy, and connection that come from outdoor adventure.

Our 2026 fundraising goal is $175,000 — and every mile, every post, and every donation helps move us closer.

Because access doesn’t happen by accident.
It happens when communities move mountains together.

Not able to participate? You can still make a difference—donate today and help us keep mountain sports accessible to everyone.

Support Access Mammoth by registering for Sierra Summer Challenge

To make a reservation or ask questions, please get in touch with us:

Phone: 760-934-0791
Email: give@accessmammoth.org