Springwater Corridor Professional Review and Guide
"The Springwater Corridor is the major southeast section of a system of nature trails encircling Portland. Ride, walk, or skate the trail to enjoy parks, botanical gardens, and wetlands—not to mention herons, coyotes, and deer—as you travel through industrial, suburban, and rural areas. August is blackberry month; don’t hesitate to savor your way down the trail.
The Springwater Corridor covers 21.5 miles and is the major southeast section of the planned 40-Mile Loop around the greater Portland area, a path first conceived in 1903 to serve as a nature trail encircling the city and connecting park sites. Though the forefathers lived in a city of woodlands and meadows, they had the foresight to plan a trail system. The original name, 40-Mile Loop, is a bit confusing, since the loop will consist of about 102 miles of trails and the regional trail system is envisioned to be 220 miles of interconnected trails."