West of Neillsville in Clark County, the 133,000 acre Clark County Forest has a 160 mile off-road motorcycle trail system with 6 trailheads.
The Knobby Ridge Trail System has a one-way, 5 mile dirt bike loop (moderate) and an 18 mile dirt bike loop (difficult). To reach the trailhead from the intersection of US 10 and SR 73 in Neillsville, go west on US 10 for 8 miles. The trailhead will be on the right.
Two great trailheads are at Wild Rock Park off Bald Peak Forest Road and Snyder Park on US10 west of Neillsville.
Overall, Knobby Ridge Trail System is the 6th most popular dirt bike trail of all 26 dirt biking rides in Wisconsin.