Chesapeake & Ohio Canal National Historical Park · District of Columbia, Maryland, West Virginia

Dam 4 Inlet Lock Path

0.1 mi of trail, end to end · 326 ft–327 ft · native surface · trail class Highly Developed · hiking

327 ft 326 ft · 0.1 mi high 327 ft

On the parks map

All 257 trails in Chesapeake & Ohio Canal National Historical ParkFind a trailOn the parks mapPark on nps.gov

About this trail's facts

The lines are the National Park Service's public trails layer, the trailheads and the waterfalls, views, peaks and historic places along them the Service's public points of interest, read 2026-10-16 and simplified for the map; the length is the line's, end to end. The write-ups are the Service's own "things to do" text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the park's own site before you go.