Maine Summit Trek for Tree 2026

The Maine Summit Trek for Tree is a unique fundraising and community event hosted by Lost Valley and benefitting Tree Street Youth. The Maine Summit Trek for Tree creates an opportunity for the whole community to summit Lost Valley in Auburn, Maine as many times as possible in 4 hours! Together, we will see how many 4k Maine peaks can be climbed both collectively and individually. Bring your competitive spirit or just show up for some fun!

While the event is open for all, the Maine Summit Trek for Tree also offers its signature Endurance Hiking Challenge. 

From 11AM-3PM, Endurance Challengers will run, hike, and walk the Access Road of Lost Valley to reach the peak. Take the chair lift down or descend the same path. Repeat as many times as possible to gain the equivalent elevation of some of Maine’s biggest peaks. At only 1/2 a mile and 200’ of gain, give it a try, how many laps can you get? Whether you take on the challenge for 1 hour, or all 4, burn your legs and get your heart pumping, challenge yourself! 

There is no registration fee for Endurance Hikers! We ask all Endurance Hikers to fundraise whatever they can, which supports the cost of the event and Tree Street Youth programs. Invite friends and family to sponsor your runs up the mountain, offering a dollar amount for each successful run! There is no minimum amount to fundraise, and all funds go to a good cause: supporting Tree Street Youth’s programming!

The day will wrap up with an Awards Celebration that includes recognition for most laps, most fundraised, and more. 

Event Schedule - Sunday, October 25th

10AM - Registration & Welcome for Endurance Hikers

11AM-3PM - Endurance Hiking Challenge begins! How many laps can you achieve in 4 hours?

3-4PM - Awards and Celebration

We hope you will join us for this unique and fun challenge!