“A nice climb along Thompson Ridge to the upper San Antonio Canyon.”
— Taber West
This trail starts about a mile up Forest Road 106 on the right side just past the fork in the road. You can park down by Highway 4 at the start of FR106 to make a loop using the San Antonio Trail as a return. It's a mix of faint doubletrack and singletrack, and winds through meadows and forest on the way to the top of the canyon. At the north end of the trail you'll cross the West fork of the Jemez River before joining the San Antonio Canyon Trail.