St Mary’s River State Park

St Mary’s River State Park

Trail Description: A 7.5 mile trail circles the lake, allowing the area to be fished from shore or by boat (electric motor only). The trail is regularly used for hiking, biking and horseback riding. The Maryland Park Service does not rent horses, and only provides the trails as a means of recreation. There is waterfowl hunting at designated sites only (accessible by boat). Permit (free) and reservation are required. You can make reservations by calling 301-743-5161 between 8 a.m. and 12 p.m. The Site 1 area has been improved by a modern comfort station, picnic tables, playground, boat launch ramps and a large, gravel parking lot. Picnicking is permitted but tables are limited. Pets are allowed in the state park.

Site 2 covers approximately 2,200 acres and is primarily undeveloped. It is a wildlands area and a managed hunting area. Small game such as rabbit and squirrel, as well as white-tailed deer are found here. Hunting with a firearm is permitted. You may hunt with bow and arrow during the regular archery season for deer. For specific regulations and seasons, check the Guide to Hunting and Trapping in Maryland. Parking is permitted in designated areas only.


Maps: Park Map GPX/KML

Trail Location: 21250 Camp Cosoma Road, Callaway, MD 20620

Trail Length: 7 1/2 miles

Counties: St Mary’s

Trail Surface(s): Wooded trails, but have exposed tree roots.


Parking and Trail Access: Three miles north of Great Mills, 24 miles north of Point Lookout State Park, off MD Route 5 on Camp Cosoma Road.  A large paved lot is available and trails begin from the parking lot and circle around the lake.

Seasonal Restrictions: Hunting is permitted. The comfort station and water may be turned off during the winter.

Reviews and Tips: The trails have many exposed roots, and some water crossings are difficult.

Amenities: Comfort station.