MD 4 Travel Info
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Maryland Route 4 (MD 4) is a state highway in the U.S. state of Maryland. The state highway runs 64.85 miles (104.37 km) from MD 5 in Leonardtown north to Southern Avenue at the Washington, D.C. border, past which the highway continues as Pennsylvania Avenue. MD 4 is a major commuter route in Southern Maryland, connecting Washington and suburbs in Prince George's Cou ... more
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