The Bullis Hollow Trail is a TVTA constructed and maintained trail within the Allegheny National Forest.  It connects the upper end of the Marilla Springs Trail to the Tracy Ridge Trail System and the North Country Trail.  The trail is twelve miles long.  The path is single-track, unimproved.  Blazes are blue diamonds.

At the east end access is via Marilla Bridges and Marilla Springs Trails.  Alternately it may be reached by Forest Road 173.  Limited parking is available at the road’s junction with FR 173H.

A parking lot is on State Route 321 at the top of the ridge north of the entrance of Tracy Ridge Campground.  This serves as a trailhad for Bullis Hollow Trail to the east and for the Tracy Ridge Trail System to the west. 

Forest Road 137 has limited off-road parking where the trail crosses and serves as a mid-point trailhead.