The M-NCPPC, Department of Parks and Recreation, Prince George’s County Finalizes Momentous Acquisition of Over 500 Acres of Forested Land. Riverdale, MD – The Department of Parks and Recreation in Prince George’s County, part of The Maryland-National Capital Park and Planning Commission (M-NCPPC), announces the acquisition of 537 acres of forested land in Upper Marlboro, Maryland. Covering nearly a square mile, the acquisition adds to the Charles Branch Stream Valley Park and is a testament to the Department’s commitment to protecting and enhancing open space in the county.