Prince George's County
Merkle Natural Resources Management Area and Visitor Center
11704 Fenno Road
Upper Marlboro, MD 20772
Contact: 443-510-9920
Hours:
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.