Current Park Conditions


Park Closure


Towpath and Park Conditions

Milepost 1–25

Including Georgetown, Washington D.C.; Bethesda, MD; Potomac, MD; Seneca, MD

  • Georgetown Locks 3 and 4 (MP 1)

    Towpath Closed, Towpath detour between 30th Street and Thomas Jefferson Street in Georgetown. The surrounding area will be closed for construction. For more information
  • Lock 7 (MP 7)

    Local detour
  • Rock Run (MP 8.8)

    Towpath Closed, Find a detour over bridges at Lock 10 and 11, and a temporary bypass trail for approximately 0.2 miles between mileposts 8.8 to 9.0.

  • Billy Goat Trail (MP 9.9)

    Closed, Section A
    Closed, Section B
    Open, Section C
  • Great Falls Tavern Area (MP 14)

  • Open, Olmsted Island and Great Falls Overlook.
  • CLOSED, Great Falls Tavern Visitor Center— winter hours - Closed due to ongoing maintenance issues, phone lines are also down (last updated 2/13/19)
  • Open, Great Falls Entrance Road (MacArthur Blvd)
  • Towpath Closed, Due to construction, please use the marked towpath detour at Great Falls upstream of Lock 20. For more information.
  • Bridge Closed, Lock 19, Due to construction, please use the upstream bridge at Lock 20. For more information.
  • Closed, Mule-drawn boat rides. Boat rides resume in 2019 For more.

Milepost 25–50

Including Poolesville, MD; Whites Ferry, MD; Dickerson, MD; Point of Rocks, MD

Closed Monocacy Boat Ramp (MP 42.2)


Milepost 50–100

Including Brunswick, MD; Harpers Ferry, WV; Shepherdstown, WV; Downsville, MD; Williamsport, MD
  • Catoctin Aqueduct- Brunswick Family Campground (MP 51.5–MP 54)

Towpath Closed. Due to a washout. There is no detour in place at this time due to unsafe conditions on adjacent roadways. From the west, exit the towpath at Brunswick (MP 55), or from the east at Lander Lock 29 (MP 50.9). Please contact Shepherdstown Pedal and Paddle at 304-876-3000 or River and Trail Outfitters at 301-834-9950 to arrange for a shuttle around the detour. Construction has begun on a temporary bridge but has been delayed due to frequent high water events.

  • Big Slackwater: Dam #4 - Burnside Farm (Milepost 84.4 - MP 90.0)

    • Towpath Closed. Due to flooding. Use existing detour.
  • Williamsport Area (MP 100)

  • Closed, Conococheague Aqueduct towpath access, find a marked towpath detour upstream and downstream. Please follow the marked detour route. Learn more about the Conococheague Aqueduct project.
  • Closed, Williamsport Visitor Center and Boat rides. Learn about boat ride operations and operating seasons in Williamsport, Maryland.

Boat Ramp Closures

  • Closed, Snyders Landing (MP 76.65)
  • Closed, Taylors Landing (MP 81.00)
  • Closed, Big Slackwater (MP 85.40)

Milepost 100–150

Including Big Pool, MD; Hancock, MD; Little Orleans, MD

Milepost 150–184.5

Including Paw Paw, WV; Oldtown, MD; Cumberland, MD
  • Paw Paw Tunnel (MP 155.2)

    Open. Phase 2 of construction is anticipated to begin in the spring of 2019. Learn more about the Paw Paw Tunnel construction.

  • Spring Gap Recreational Area (MP 173.3)

    Open, recreation area
  • Closed, boat ramp
  • Closed, toilets

Drinking Water Conditions

Remote water faucets off for winter

Drinking water is available from mid-April to mid-November at Hiker/Biker and Drive-In Campsite locations, approximately every 5 to 7 miles. Water quality tests are performed frequently by park staff ensuring drinkable water. As of 11/21, all water is shut off throughout the park. Please plan your trip accordingly.

Off Lock 5 (MM 5)
Off Lock 10 (MM 8.8)
Off Carderock Recreation Area (MM 10.5)
Off Marsden Tract (MM 11.5)
Off Anglers Access (MM12.2)
Off Swains Campground (MM 16.7)
Off Seneca Creek/Rileys (MM 22)
Off Horsepen Branch Campsite (MM 26)
Off Chisel Branch Campsite (MM 30.5)
Off Turtle Run Campsite (MM 34.4)
Off Marble Quarrry Campsite (MM 38.2)
Off Indian Flats (MM 42.4)
Off Calico Rocks Campsite (MM 47.7)
Off Bald Eagle Island Campsite (MM 50.3)
Off Lock 34 (MM 61.5)
Off Huckleberry Hill Campsite (MM 62.9)
Off Antietam Creek Campground (MM 69.6)
Off Killiansburg Cave Campsite (MM 75.4)
Off Horseshoe Bend Campsite (MM 79.7)
Off Big Woods Campsite (MM 82.4)
Off Opequon Junction Campsite (MM 90.8)
Off Cumberland Valley Campsite (MM 95.2)
Off Jordan Junction Campsite (MM 101.2)
Off Four Locks Picnic Area (MM 108.9)
Off North Mountain Campsite (MM 109.2)
Off McCoys Ferry (MM 110)
Off Licking Creek Campsite (MM 116)
Off Little Pool Campsite (MM 120.7)
Off White Rock Campsite (MM 126.5)
Off Leopards Mill (MM 129.9)
Off Cacapon Junction (MM 133.6)
Off Indigo Neck (MM 139)
Off Fifteen Mile Creek Campground (MM 140.9)
Off Devils Alley (MM 144.5)
Off Stickpile Hill Campsite (MM 149.3)
Off Sorrel Ridge Campsite (MM 154.1)
Off Arbaugh (MM 155)
Off Paw Paw (MM 156)
Off Purslane Run Campsite (MM 157.4)
Off Town Creek (MM 162)
Off Potomac Forks (MM 165)
Off Pigmans Ferry (MM 169)
Off Spring Gap (MM 173)
Off Irons Mountain Campsite (MM 175.4)
Off Evitts Creek Campsite (MM 180)


River Conditions

Raging Potomac River above flood stage.
Raging Potomac River well above flood stage at Great Falls, Fall 2011

NPS Photo

The Park monitors Potomac River levels to determine when portions of the towpath, hiking trails or parking areas might be affected by rising river levels. By visiting the National Oceanic and Atmospheric Administration - National Weather Service Advanced Hydrologic Prediction Service, you can see a timeline of expected river rises and crests to help plan your visit to the park.

Section A of the Billy Goat Trail often closes due to flooding. Under normal conditions, the trail is closed when the gauge at Little Falls reaches 5 feet and reopens when the gauge falls to 4.8 feet. However, under certain circumstances, the trail may be closed at lower levels. Please call the Great Falls Tavern Visitors Center at 301-767-3714 during regular business hours for the latest information on trail closures.


Last updated: February 14, 2019

Contact the Park

Mailing Address:

1850 Dual Highway, Suite 100
Hagerstown, MD 21740



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