Maryland Route 710 is a state highway in the U.S. state of Maryland. Known as Ordnance Road, the state highway runs 2.16 miles (3.48 km) from MD 2 in Glen Burnie east to MD 173 in Brooklyn Park at the city limits of Baltimore. MD 710 provides access to the Defense Logistics Agency Curtis Bay Depot, a unit of the General Services Administration. The state highway is named for the federal site's prior use as a U.S. Army Depot. MD 710 was constructed in the early 1940s and relocated for most of its length concurrent with the construction of MD 10 in the early 1970s.

Maryland Route 2 is the longest state highway in the U.S. state of Maryland. The 79.24-mile (127.52 km) route runs from Solomons Island in Calvert County north to an intersection with U.S. Route 1 /US 40 Truck in Baltimore. The route runs concurrent with MD 4 through much of Calvert County along a four-lane divided highway known as Solomons Island Road, passing through rural areas as well as the communities of Lusby, Port Republic, Prince Frederick, and Huntingtown. In Sunderland, MD 2 splits from MD 4 and continues north as two-lane undivided Solomons Island Road into Anne Arundel County, still passing through rural areas. Upon reaching Annapolis, the route runs concurrent with US 50/US 301 to the north of the city. Between Annapolis and Baltimore, MD 2 runs along the Governor Ritchie Highway, a multilane divided highway that heads through suburban areas, passing through Arnold, Severna Park, Pasadena, Glen Burnie, and Brooklyn Park. In Baltimore, the route heads north on city streets and passes through the downtown area of the city.