This gravel parking lot at C&O Canal Mile 156. 1 provides free access to the historic 3,118-foot Paw Paw Tunnel and the towpath, with capacity for approximately 30 vehicles and overnight parking allowed.

The tunnel is a notable engineering landmark that can be walked through with a flashlight, and visitors can return via the 2-mile Tunnel Hill Trail. A nearby NPS campground and hand pumps at adjacent locations offer additional amenities for extended visits.