Lamoille River Walk Ritchie Ave Trailhead This easy out-and-back trail covers 2.6 miles with an elevation gain of 252 feet, taking about 1–1.5 hours to complete. The trail follows the Lamoille River through a wonderland of ferns, wildflowers, and wildlife, withviews of the first dam built on the lower Lamoille at the east end. The beginning of the trail features a unique foot bridge, andthis area is popular for fishing. Roughly half the trail is on property retained by the Town of Milton through open space, while the other half is on Green Mountain Power land provided through a license agreement.