Swains Lock Hiker-Biker Campsite
Swains Lock Hiker-Biker Campsite is a national park campground in Maryland.
- Type
- National park campground
- Location
- Maryland
- Coordinates
- 39.03100, -77.24458
- Map
- Open in OpenStreetMap
- Phone
- 301-739-4200
Amenities
- Potable water (Water; but not potable)
- Toilets (Portable Toilets - year round)
- Cell reception (per NPS)
Only amenities a source confirms are listed; an amenity missing here is unknown, not absent.
About Swains Lock Hiker-Biker Campsite
Mile 16.6 - Hiker-biker campgrounds are located along the towpath approximately every 5-7 miles. No fee or reservation required. Overnight stays are limited to one night. All sites include a chemical toilet, picnic table, grill, and water. Please Note: Water at hiker-biker campsites is non-potable. Water is not treated and not for drinking or cooking. If you use this water, you are advised to filter, chemically treat, or boil before use. Water is turned off from mid-November to mid-April each year.
Cell coverage
No coverage data for this location yet.
Nearby RV services
- Dump station
- Maryland Department of Natural Resources · 35 mi
- Water fill
- None mapped within 50 mi
- Propane
- Exxon · 3.3 mi
- Low clearances
- 28 bridges or tunnels at 14 ft or less within 10 mi
Other places to stay nearby
| Name | Type | Distance | Fee | Hookups |
|---|---|---|---|---|
| Lock 21 “Swains” Campground | Free campsite | under 0.1 mi | Free | — |
| Camp Fraser | Private campground | 3.7 mi | — | — |
| Marsden Tract Group Campsite | National park campground | 3.9 mi | — | No hookups |
| Marsden Tract Group Campsite | Free campsite | 4.0 mi | Free | — |
| Carderock Recreation Area Pavilion | National park campground | 4.8 mi | — | No hookups |
| Robert C. McDonell Campground | Free campsite | 5.1 mi | Free | — |
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Sources. National Park Service. Updated June 2026. Facility facts only; DryRig does not publish ratings or reviews on this page.