Northwest of Vernal, the Highline Trail (#025) is a well-marked and heavily used route running from northwest of Roosevelt eastward to north of Vernal on US191. The eastern end from US191 to Oaks Park Reservoir is open to ATV riders and mountain bikers.
To reach the eastern terminus from Vernal, head north on US191 for 30 miles.
Note: As of September 2007, ATV riding on Forest Service roads requires a Utah ATV registration. Only certain designated Forest Service roads are open to ATV riding.
Overall, Highline Trail is the 23rd most popular ATV riding trail of all 75 ATV trails in Utah.