abstract:Route 21 is a bus route operated by the Maryland Transit Administration in Baltimore. The line currently runs from the Mondawmin Metro Subway Station to Fells Point, serving the corridors of Gilmor Street, Preston/Biddle Streets, and Caroline Street, and the communities of Sandtown-Winchester, Mt.
The 13.1-mile (21.1km) route started and finish in Anchor Road and takes runners on a harbourside route, which also passes twice under Brunel's Clifton Suspension Bridge.