Spruce Knob receives more than 40 inches of precipitation annually, but the east side of Spruce Mountain receives much less, creating a distinctly different ecosystem. The deep drainage of Seneca Creek is almost another world from the Gandy Creek drainage to the west or the North Fork of the South Branch of the Potomac River to the east. Most of the trails are marked with blue blazes and signs, although they may be overgrown. Some maps of the area may no longer be correct in trail names and numbers. During management planning for the area, some trails were combined and names and number were dropped.
All trails still exist on the ground, however.
It leaves Seneca Creek trail in a small meadow, ascends through forest and over a small stile into a grazing field. Follow rock cairns NE across the field to the junction with Huckleberry trail. During the summer, the meadow is filled with a variety of wildflowers and attended by songbirds and butterflies. There is a parking area with a bulletin board at the southern trailhead, but this trailhead is generally inaccessible during the winter since FR 112 is not plowed. The trail starts on an old road on the east side of the creek, which is small at this point.