About trails in St. Mary's County, Maryland

St. Mary's County has 43 named trails on the map, covering 47.8 miles in total, an average of 1.1 miles per trail. That is the 13th largest mapped trail network among 24 counties in Maryland. 41 of them are tagged for hiking and 18 for mountain biking.

The longest single trail is Three Notch Trail, at 12.4 miles. 2 trails run 5 miles or longer. Mapped points of interest in the county include 4 trailheads, 13 campsites, and 29 boat launches. The nearest towns to these trails are Callaway, California, and Broomes Island.

Explore by activity

48Total miles

13Campsites

29Boat launches

4Trailheads

Three Notch TrailMTB12.4 mi White TrailHikeMTB6.8 mi Saint Mary's City Nature TrailHike3.1 mi Forest RoadHikeMTB1.9 mi Western Branch RoadHikeMTB1.8 mi Bell Lap TrailHikeMTB1.5 mi Pine TrailHikeMTB1.5 mi Yellow TrailHike1.4 mi Deep Woods TrailHike1.1 mi Brown TrailHike1.1 mi Periwinkle Point TrailHike1.1 mi Red Trail LoopHike1.1 mi Grassy wayHike1.0 mi Blue Trail loopHike1.0 mi Cross TrailHikeMTB1.0 mi Unused trail0.9 mi Green TrailHikeMTB0.8 mi White Trail LoopHike0.6 mi Road Less TraveledHikeMTB0.6 mi "Take a walk for you heart" Fitness trackHike0.5 mi Old Yellow trailHikeMTB0.5 mi White Trail HeadHike0.5 mi West Lake TrailHikeMTB0.4 mi Plantation TrailHikeMTB0.4 mi Kingfisher TrailHike0.4 mi Canal PathHikeMTB0.4 mi Plantation Trail Deer Track BranchHikeMTB0.4 mi Blue Trail SouthHike0.4 mi MudbypassHikeMTB0.3 mi CSM Leonardtown Nature TrailHike0.3 mi Eagle Way PathHike0.3 mi Cypress WayHike0.3 mi Berry LaneHike0.3 mi Godiah Spray Tobacco PlantationHike0.3 mi Pond TrailHikeMTB0.2 mi Historic Barn TrailHike0.2 mi Blue Trail BypassHike0.2 mi North Pine TrailHikeMTB0.2 mi Wet Sox TrailHike0.2 mi Brown Trail CapHike0.2 mi Pine Trail AccessHikeMTB0.1 mi Tennis Courts Foot PathHike0.1 mi Baseball diamond foot pathHike0.1 mi

Trails by town in St. Mary's County

More Maryland counties

Prince George's County

568 trails · 1,262 mi

Trail geometry from OpenStreetMap contributors, licensed ODbL. Elevation from the USGS 3D Elevation Program. Compiled and published by Trailmonger · trail data last rebuilt September 2, 2026.