The Lower Manzana Trailhead is located on Sunset Valley Road, approximately 1.5 miles past Davy Brown Campground. This trailhead is very popular for a number of reasons, primarily because it is a portal to the San Rafael Wilderness. The Lower Manzana Trailhead leads to a historical schoolhouse, last used in 1901. In close proximity to the schoolhouse, one will also find a historical hunting lodge known as the Dabney Cabin. This trail is also very popular for backpackers and horseback riders, as there are many primitive campsites throughout the connecting trails. The parking area is in a wide turnout within 50 feet of the trailhead and accommodates between 12 to 15 vehicles. During heavy rainfalls, the trailhead may be inaccessible.