C & O Canal Towpath: Great Falls to Old Angler’s Inn with Olmsted Island Professional Review and Guide
"Scenery, exercise, and glimpses of history—the C&O Canal Towpath has it all, and it is almost completely level. This close-in segment in Montgomery County features a waterfall, a visitor center, and a towpath used by mules to pull barges in the 1700s.
After parking, find your way to the Great Falls Tavern Visitor Center to check out the museum and get a map. Rangers are usually available to answer questions about the hiking trails. Originally, in the 1820s, the building was a lockhouse where canal operators lowered and raised the locks for canal boats carrying coal upstream from Maryland’s western counties south to Georgetown."