St. Mary's River State Park
Maryland State Park · St. Mary's County
St. Mary's River State Park entrance fee
$3–$5 per vehicle — Maryland residents $3/vehicle; out-of-state residents $5/vehicle
St. Mary's River State Park hours
May through September: 6 a.m. to sunset
October through April: 7 a.m. to sunset
Hours as published by Maryland Park Service. Check the official page before a long drive.
About St. Mary's River State Park
Two separate tracts at the head of the St. Mary's River watershed: Site 1 holds a 250-acre lake with a boat ramp and playground, Site 2 is undeveloped wildlands. Fishing and hunting are the draws.
Things to do
- 🥾 Hiking
- 🎣 Fishing
- ⛵ Boating
- 🏹 Hunting
Amenities & facilities
- 🚻 Restrooms
- 🛝 Playground
- 🚤 Boat Ramp
- 🌞 Day Use Only
Contact
Phone301-872-5688
Address21250 Camp Cosoma Road, Leonardtown, MD 20650
🎒 Gear up for St. Mary's River State Park
Popular gear for what this park offers:
- Fishing rods
- Hiking boots
- Trail cameras
- Life jackets
- Bug spray
- Tackle kits
- Daypacks
- Trekking poles
- Hunting binoculars
- Dry bags
- Sunscreen
- First aid kit
- Water bottles
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