Beginning at a point where the center line of Crain Highway (U.S. 301) and the center line of Leeland Road intersect, thence northerly with the center line of Crain Highway to the center line of Queen Anne Road, thence northeasterly with the center line of Queen Anne Road to the center line of Queen Anne Bridge Road South, thence southeasterly with the center line of Queen Anne Bridge Road South to the center line of the Patuxent River, thence southerly with the center line of the Patuxent River to the center line of Selby Landing Boat Ramp Road, thence northerly, westerly and southerly with the center line of Selby Landing Boat Ramp Road to the center line of Croom Airport Road, thence westerly with the center line of Croom Airport Road to the center line of Duvall Road, thence northerly with the center line of Duvall Road to the center line of Mt. Calvert Road, thence southwesterly with the center line of Mt. Calvert Road to the center line of Croom Road (Md. 382), thence northwesterly with the center line of Croom Road to the center line of Croom Station Road, thence northerly with the center line of Croom Station Road to the center line of Old Crain Highway, thence northeasterly with the center line of Old Crain Highway to the center line of Pennsylvania Avenue (Md. 4), thence westerly with the center line of Pennsylvania Avenue to the center line of Ritchie-Marlboro Road, thence northwesterly with the center line of Ritchie-Marlboro Road to the center line of Old Marlboro Pike, thence easterly with the center line of Old Marlboro Pike to the center line of Brown Station Road, thence northwesterly with the center line of Brown Station Road to the center line of White House Road, thence northeasterly with the center line of White house Road to the center line of Largo Road (Md. 202), thence easterly with the center line of Largo Road to the center line of Oak Grove Road (Md. 556), thence easterly with the center line of Oak Grove Road to the center line of Leeland Road, thence southeasterly with the center line of Leeland Road to the point of beginning.