Maryland Route 650 (
MD 650) is a
state highway in the
U.S. state of
Maryland. Known as New Hampshire Avenue for most of its length, the state highway runs from
Eastern Avenue at the
Washington, D.C. border north to
MD 108 in Etchison. MD 650 serves as a major north-south commuter route in southwestern
Prince George's County and eastern
Montgomery County, connecting the District of Columbia with the residential suburbs of
Takoma Park,
Langley Park, Maryland,
Adelphi,
Hillandale,
White Oak, and
Colesville. By contrast, the part of MD 650 north of
Spencerville is a quiet rural road connecting several small communities along the northeastern fringe of Montgomery County.