“This old road is the Mundy's Gap West trail with the infamous "rock garden" scree field
— Stu Chaffey
To begin descending the 850 vertical drop in this trail, begin at the top of the scenic Mundy's Gap. The trail is actually a bulldozed road, one of those that in the 1970s galvanized public opinion against development and led to the establishment of Franklin Mountains State Park.
The road is wide and the grade steep but mostly rideable. Some sections are eroded. It is quite reasonable to ride up this road as well as down--it's a great workout.
The half-mile section between the trailhead and the junction with Agave Loop
is a very rocky arroyo. Near the top is the infamous "Rock Garden". This scree field of loose softball to volleyball sized boulders will test the nerves of even the best riders. Riders should be extremely careful here, and many will want to walk this section.
The trail ends in one of the paved parking areas of Tom Mays Park.