McDonald's Restaurants AddressSt. Mary's County, Maryland, US Websitehttps://www.mcdonalds.com/us/en-us/location/md/california/45310-alton-lane/33757.html AreaSt. Mary's County, Maryland, United States Open on map Directions Back to directory search ☆ ☆ ☆ ☆ ☆ Submit