Campgrounds and RV parks near Williamsport, MD

Williamsport sits on the Potomac River in Washington County, Maryland, along the Chesapeake and Ohio Canal National Historical Park. RV renters use it as a base for the C&O Canal towpath, the Western Maryland Rail Trail, Antietam National Battlefield, and Fort Frederick. The area draws a mix of history-focused travelers, cyclists, and families looking for a river-and-trail weekend within easy driving distance of Baltimore, D.C., and Pittsburgh. Campground options range from full-service private resorts to primitive national and state park sites. Yogi Bear's Jellystone Park Camp-Resort: Williamsport and Hagerstown / Antietam Battlefield KOA Holiday handle larger rigs with hookups and family amenities. Leatherman's/Falling Waters Campsite offers a quieter, small-park feel nearby. For a more rustic stay, McCoys Ferry Campground sits at Mile 110.4 on the C&O Canal Towpath, between the towns of Big Pool and Big Spring on the Maryland side of the Potomac River, with drive-in sites that fit RVs up to 20 feet, reached through a tunnel that limits vehicle height to 10 feet 3 inches. Fort Frederick State Park adds riverside camping next to a restored 18th-century stone fort.

Reservation systems vary by campground type. Private parks including Yogi Bear's Jellystone Park Camp-Resort: Williamsport, Hagerstown / Antietam Battlefield KOA Holiday, and Leatherman's/Falling Waters Campsite take bookings directly through their own websites or brand portals, and typically require a deposit at reservation. McCoys Ferry Campground - Chesapeake Ohio Canal National Park is booked through Recreation.gov, and reservations can be made up to six months in advance online or by calling (877) 444-6777. Sites fit RVs up to 20 feet, and the tunnel access limits vehicle height to 10 feet 3 inches, so renters with larger rigs should choose a different park. Fort Frederick State Park uses the Maryland state system. Most campsites can be reserved from May through October via the Maryland Department of Natural Resources reservation system or by calling 1-888-432-CAMP. Booking two to three months ahead is recommended for summer weekends.