St. Mary's County, Maryland, is located in the southern part of the state, bordered by the Potomac River to the west and the Chesapeake Bay to the east. It is known for its rich history, including the founding of the Maryland Colony in 1634. The county features a mix of rural landscapes, waterfront areas, and small towns, making it a unique place to live and visit. The county seat is Leonardtown, which serves as the cultural and economic center. St. Mary's County is home to several parks and recreational areas, including Point Lookout State Park, offering opportunities for outdoor activities like hiking, fishing, and boating.