Eastern Trail Alliance

The Eastern Trail Alliance is a 501(c)(3) nonprofit that builds, maintains, and promotes the Eastern Trail, southern Maine's premier multi-use greenway.

The Eastern Trail is a visionary plan for a long-distance walking and bicycling trail that will one day extend entirely and continuously off-road from Casco Bay in South Portland to the Piscataqua River in Kittery. Today, trail users can enjoy more than 20 miles of completed trail. The Eastern Trail is a collaborative effort between two sister organizations (the Eastern Trail Alliance and the Eastern Trail Management District), municipalities, and public agencies that together support various aspects and segments of the trail. A 2021 study estimated that over 250,000 people use the trail annually to walk, bike, run, and bird watching in southern Maine.