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100 Mile Challenge

100 Mile Challenge

May 29 – September 5

Walk, run, hike, paddle, or pedal—or any combination of any human-powered activity—100 miles in 100 days to celebrate 100 years of ADK!

Raise $100 or more in sponsorships, and win a 100 Mile Challenge patch. Additional prizes will be awarded to the three people who raise the highest amounts, and to those who reach the following sponsorship levels: $100, $250, $500, and $1000.

Accept the Challenge and Register Today!


Support Summit Stewardship

Summit stewards have made a real, measurable difference in the health and sustainability of fragile alpine plants. Your support makes it possible to not only continue this work, but also to expand it to make an even greater impact across the high peaks.

Visit Cascade Welcome Center

No matter what kind of adventure you're planning, ADK's friendly experts can help you plan and prepare to have a great time.

Support ADK Trailwork

Since 1979, ADK’s professional trail crews have built & maintained sustainable trails throughout the Adirondack Park and beyond.

Volunteer Summit Steward

ADK Summit Stewards are dedicated volunteer education professionals who work to protect fragile alpine plants […]