McMahon's Mill Campground:


  • Campsites for RV's and Tents
  • Located at the 88.1 mile marker on the Historic C&O Canal
  • Closest campground to Antietam Battlefield (15 min.)
  • 35 miles to Harper's Ferry or Gettysburg.
  • Fishing, boating, and swimming in the Potomac River
  • Close to the Dam No.4 Federal boat ramp
  • Special rates for Boy Scouts and other youth groups when accompanied by adults
  • Toilets, showers, and dumping stations available
  • Pets welcome on leash

(include electricity, water, and dumping station or hook up)
$40.00/day for 2 adults and their children under 17
$10.00/day extra for air conditioning or electric heat
$8.00/day charge for visitor on site 4-8 hours
$17.00/day for each extra adult on site (over 8 hours)


  1. Check In - 12 NOON (or earlier if the site is available).
  2. Check Out - 1:30 PM (later times by arrangement for those visiting battlefields, local tourist sites, or boating.)
  3. No washing of RV's or vehicles without permission.
  4. Campfires in fire rings only.
  5. Quiet time from 10 PM to 8:30 AM.
  6. Pets must be controlled, on leash, and cleaned up after.
  7. Visitors are limited to 4 hours without charge.
  8. Trash is to be dropped off at Trash Area on departure.