(CMH) at Calvert Memorial Hospital N. of Prince Frederick, Calvert County, MD. MD2/4 (Solomons Island Rd.) N. 1.1 miles from jct with MD402 (Dares Beach Rd.) in Prince Frederick to the tower on the E. side of the road. (N38 33.634 W76 35.856) Photo by Rodger Strickler 12-2-10.