4.9 mi of trail, end to end · about 2,500 ft of climbing · 880 ft–3,379 ft · native material surface · trail No. 32216 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, bike
TrailheadSmarts Brook Trailhead 873 ft Drive there
Old Waterville Road Trailhead the Forest Service's write-up
The Old Waterville Road Trail is an offshoot of the popular hiking and cross-country skiing loops of the Smarts Brook area and offers a less travelled access to that area, meeting a junction with the Yellowjacket and Pine Flats trails in 1.8 miles. Please park in a manner such that the gate is not blocked.
Smarts Brook Trailhead the Forest Service's write-up
It accesses a popular and scenic system of shorter loop hikes that is also a popular ungroomed crosscountry skiing area in winter. The Smarts Brook trail passes through the center of these loops and slowly ascends the valley, connecting after 5.1 miles to the Sandwich Mountain trail just below Jennings Peak.
The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.
