The Great Falls Tavern (also historically known as the Crommelin House) originally functioned as one of the many lockhouses along the canal and serviced thousands of cargo and excursion boats that passed through Lock 20 on the way to and from Cumberland, MD and Georgetown in Washington, DC. Today the Great Falls Tavern remains a hub of activity as it acts as one of C&O Canal National Historical Park's visitor centers. Here, visitors can get information about the park's programs, hiking trails, and history.