Maryland State Route 650 runs east-west across Northeastern Montgomery County. It runs from the Prince George's/Montgoemry County Line, near College Park, and runs to Maryland State Route 108, at Etchison. MD St Rt 650 passes through the following towns in Montgomery County. White Oak Colesville Browns Corner Ednor Ashton Brinklow Brighton Sunshine Unity Etchison MD St Rt 650 is not multi-plexed in Montgomery County. MD St Rt 650 intersects the following highways in Montgomery County. Interstate 495, near Silver Springs. U.S. Rt. 29, near White Oak. Maryland State Route 200, near Colesville. Maryland Staet Route 198, at Browns Corner. Maryland State Route 108, at Ashton. Maryland State Route 97, at Sunshine. Maryland State Route 108, at Etchison.