About Lock 21 “Swains” Campground
Lock 21 “Swains” Campground is one of the campgrounds in the Potomac area of Maryland. The nearest town is Potomac, a short drive away. National Park Service runs the campground.
Campers can expect restrooms and tents allowed, according to the latest available data. There is no fee to camp here. Sites are first-come, first-served. Check www.nps.gov/choh/planyourvisit/camping.htm for the latest availability, seasonal hours, and booking details.
Lock 21 “Swains” Campground is part of the camping landscape of the South, where year-round camping and long-term monthly stays are the norm rather than the exception. Campgrounds run by the National Park Service put you inside Yellowstone, Yosemite, Zion, and dozens of other parks. The details on this page come from public map data and owner submissions, and the park itself remains the authority on current conditions.
Hookups & amenities
- Dump station
- Showers
- Restrooms
- WiFi
- Tents allowed
- RVs allowed
Only amenities confirmed in our source data are listed. Missing items are unknown, not necessarily absent. Confirm with the park before booking.
Site details
- Fee
- Free
- Reservations
- no
Location & directions
GPS: 39.03110, -77.24439
Frequently asked questions
Where is Lock 21 “Swains” Campground located?⌄
Lock 21 “Swains” Campground is in the Potomac area of Maryland. Use the map on this page for the exact location.
Can I tent camp at Lock 21 “Swains” Campground?⌄
Yes, Lock 21 “Swains” Campground accepts tents as well as RVs.
Is Lock 21 “Swains” Campground free?⌄
Yes, Lock 21 “Swains” Campground is listed as a no-fee campground. Stay limits usually apply on public land, typically 14 days.
How do I book a site at Lock 21 “Swains” Campground?⌄
Reservations and current rates are available through the park's website, www.nps.gov/choh/planyourvisit/camping.htm.
More parks near Potomac
Marsden Tract Group Campsite
Nearby RV parks & campgrounds
Camp Fraser
Marsden Tract Group Campsite
Robert C. McDonell Campground
Group camping area G-1
Lake Fairfax Park Large Group Campground
Lake Fairfax Large Group Campground
About this listing
This listing was compiled from OpenStreetMap and other public data and has not yet been verified by the park. If you own or manage Lock 21 “Swains” Campground, you can claim and update it for free.
Claim or correct this listing →