Maryland State Route 28 runs east-west across Southern Montgomery County. It runs from the Frederick/Monrgomery County Line, near Beallsville, to Maryland State Route 182, near Norwood. MD St Rt 28 passes through the following towns in Montgomery County. Dawsonville Darnerstown Quince Orchard Gaithersburg Rockville Norbeck MD St Rt 28 is not multi-plexed in Montgomery County. MD St Rt 28 intersects the following highwaysin Montgomery County. Maryland State Route 109, near Beallsville. Maryland State Route 117, near Dawsonville. Maryland State Route 107, near Dawsonville. Maryland State Route 118, near Darnestown. Maryland State Route 112, near Darnestown. Maryland State Route 124, near Quince Orchard. Maryland State Route 119, near Gaithersburg. Interstate 270, at Rockville. Maryland State Route 355, at Rockville. Maryland State Route 586, at Rockville. Maryland State Route 911, at Rockville. Maryland State Route 115, near Norbeck. Maryland State Route 97, at Norbeck. Maryland State Route 200, near Norbeck. Maryland State Route 182, near Norwood.
