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Site Name Pennyfield Lock
Water BodyChesapeake and Ohio Canal
Physical Address12420 Pennyfield Lock Road, Tobytown, MD
DirectionsFrom 495 take exit 39 for MD-190 west toward Potomac. Merge onto MD-190 (River Road) west. Left at Pennyfield Lock Road.
Owner/Manager NameNational Park Service
Owner/Manager Phone301-739-4200
Owner/Manager Email 
CommentsTEMPORARY BLOCKAGE WARNING: As of Nov. 7, 2019, access to the Potomac River from the Pennyfield Boat Ramp via Muddy Branch Creek is blocked by debris on the ramp and a large tree blocking the tunnel entrance under the C&O Canal. The public is advised to seek alternate put in and take out options until the ramp is cleared. An update will be posted to this site at that time. For more information see the NPS website at Be aware that clearance under canal aqueduct is 4 feet at high water.
# of Ramps1
# of Ramps ADA0
Ramp Width (Feet)11
Ramp SurfaceCONCRETE
Large BoatsNo
Vessel Size NotePlease note that "large boats" is intended as a general reference to ramp capacity. Generally, vessels less than 16 feet in length are considered small and those greater than 16 feet as large.
Soft LaunchYes
Soft Launch ADANo
# of Piers0
Transient UseNo
Fee Or Permit RequiredNo
Parking Lot TypePAVED
Parking Lot SizeSMALL <5
# of Car Spaces2
# of Car Spaces ADA0
# ofTrailerSpaces2
# of Trailer Spaces ADA0
Turnaround AreaYes
Trash ServiceNo
Fuel on siteNo
Questions And UpdatesIf you have a question about this site, contact the management agency using the phone number or contact information provided above. Permit/launch fees can change without notice so this site does not list them. Any corrections or updates to the information above can be sent via e-mail to
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