Northeast of Moab, the Onion Creek Road is a gentle dirt road the climbs up the Onion Creek drainage while crossing the namesake creek a couple dozen times. This easy route is perfect for families and/or pulling a child trailer.
To reach the Onion Creek Road mountain biking from Moab, head north on US191 for a mile or so to SR128. Turn right heading east on SR128 for roughly 20 miles. Turn right heading southeast on Onion Creek Road for about 0.75 miles. There is a signed trailhead parking area. Continue riding southeast up Onion Creek Road.
Note: As of Spring 2012, Onion Creek Road was greatly improved and smoothed.
Overall, Onion Creek Road is the 73rd most popular mountain bike trail of all 74 mountain biking rides in Utah.