Merkle Natural Resources Management Area and Visitor Center

Scenic wetland in Merkle Wildlife Sanctuary Park Reservations


​Prince George's County

Merkle Natural Resources Management Area and Visitor Ce​nter
11704 Fenno Road
Upper Marlboro, MD 20772

Contact: 443-510-9920​​​


Grounds open sunrise to sunset

Frank Oslislo Visitor Center: Closed till Further Notice

As the wintering ground for the largest concentration of Canada geese on the Chesapeake Bay's western shore, Merkle is one of Maryland's most unique Natural Resource Management Area.

Events Around the Park

Click the Flyer for Details!


Sign Up For Monthly Park Updates

Southern Maryland Recreation Complex – Merkle Wildlife Sanctuary Agricultural Opportunities

Part of the Maryland Park Service mission is to promote the management of natural and cultural resources to ensure the continuing benefits for present and future generations, and farming is an important component of that. Agriculture is one of the central themes in Maryland’s rich and complex history and remains an important part of our state’s culture. It helps maintain wide open spaces and provide pastoral views that have remained unchanged despite surrounding development. Agricultural land use can also provide important food for wildlife and provide locally sourced food for nearby communities. In areas of Southern Maryland Recreation Complex where agriculture can coexist with passive recreation, the Maryland Park Service leases out lands that contain prime agricultural soils and have a history of being farmed to interested farmers for short-term agricultural use.

Are you interested in farming at Southern Maryland? See the Public Notice for seven agricultural lands out for bid: