Chesapeake & Ohio Canal National Historical Park · Maryland
Overview Scouts built the Marsden Tract Group Campground to provide access to larger campsites within easy commuting distance of the D. C. Metro area.
Sites at Marsden Tract Group Campsite are reserved through Recreation.gov. Sites here can be reserved in advance through the official system, and they are claimed fast — cancellations then trickle back all season, unannounced, at any hour of the day or night.
| Total sites | 6 |
|---|---|
| Site types | Group |
| Location | Williamsport, MD |
| Book through | Recreation.gov |
| Official listing | Recreation.gov |
Because sites are booked months ahead, a steady share of reservations get cancelled as trips fall through. Each cancellation instantly returns that site and those nights to the official calendar — first-come, first-served, no waitlist, no announcement. Refreshing the booking page yourself, every few minutes for weeks, works in theory. In practice, the people who get these sites are the ones who hear about the opening first.
ItOpened scans the Recreation.gov calendar for Marsden Tract Group Campsite around the clock. When a site matching your dates and your vehicle opens, you get a text with a direct link to it. You book it yourself, in your own account, at the normal price. We never book, hold, or resell — your fee pays for monitoring, and openings are first-come, so speed is the whole game.
| Antietam Creek Campsite | Cancellation alerts available |
|---|---|
| Spring Gap Campground | Cancellation alerts available |
| McCoy's Ferry Campground | Cancellation alerts available |
| Fifteen Mile Creek Campsite | Cancellation alerts available |
| Paw Paw Tunnel Campsite | Cancellation alerts available |
| Carderock Recreation Area Pavilion | Cancellation alerts available |
Page data refreshed 2026-10-29. Site facts come from the official directory listing for Marsden Tract Group Campsite; cancellation statistics come from our own scanning logs.