Green Mountain National Forest encompasses 400,000 acres of federal land running the length of the Green Mountains in central and southern Vermont, managed by the USDA Forest Service with ranger districts in Rochester and Manchester. Within this vast forest, designated OHV routes are concentrated in the Rochester Ranger District of the central Green Mountains — Addison and Windsor counties — where the terrain produces the kind of mountain OHV riding that sets Vermont forest routes apart from the lower-elevation state forest systems. The Green Mountains in the Rochester District reach elevations above 3,500 feet, and the OHV trail corridors traverse the mixed forest and alpine transition zones at mid-elevation, crossing the ridge terrain that forms the spine of Vermont's defining geographic feature. Trail character is distinctly Green Mountain: the metamorphic and igneous bedrock of the Vermont Greens produces rocky, rooted trail surfaces that challenge riders unfamiliar with technical New England forest riding; the mountain elevation keeps temperatures cooler and extends comfortable riding into summer months; and the forest density — northern hardwood transitioning to boreal spruce-fir above 2,500 feet — creates the enclosed woodland riding environment that distinguishes Green Mountain riding from the open western systems. ATVs, UTVs, and registered dirt bikes are permitted on designated National Forest OHV routes; specific trail corridors may have width restrictions. Vermont OHV registration is required for all machines on GMNF land. Dispersed camping is permitted throughout the national forest under standard 14-night limits. The Rochester Ranger District (802-767-4261) provides current trail designations, seasonal closures, and the OHV route map for the central Green Mountains.

Groton State Forest is Vermont's largest contiguous block of state-managed land at approximately 26,000 acres in Caledonia and Washington counties — the Northeast Kingdom's transition zone where the rolling agricultural uplands of the Connecticut River watershed meet the more rugged terrain of the central Vermont mountains north of Montpelier. The forest straddles US-2 near the village of Groton and encompasses multiple ponds, the Groton Bog natural area, and an extensive trail system managed by the Vermont Department of Forests, Parks, and Recreation that includes designated ATV/OHV routes. Vermont's ATV trail network is coordinated through VASA (Vermont ATV Sportsman's Association), and the Groton State Forest system connects with the broader VASA trail corridor — meaning riders who access the forest OHV trails can link into a much larger regional trail network extending across Caledonia and Washington counties through VASA easements and connections. The terrain in Groton State Forest is northern Vermont hardwood and boreal forest: sugar maple, yellow birch, and American beech on the lower slopes; red spruce and fir on the upper ridges and bog margins; and the rocky, glacially sculpted terrain of the northeastern Vermont upland that produces consistently interesting technical trail character. The Peacham Bog area and multiple state forest ponds give the riding landscape a distinctive Great North Woods character. ATVs and registered dirt bikes are the permitted machine classes on designated OHV routes. Vermont ATV registration is required. The Green Mountain Club and VASA maintain the trail corridor connections. Contact the Vermont FPR Groton office (802-426-3042) for current OHV trail designations and seasonal status.