Maryland Route 117 is a state highway in the U.S. state of Maryland. The highway runs 12.40 miles (19.96 km) from MD 28 near Dawsonville east to West Diamond Avenue next to MD 355 in Gaithersburg. MD 117 is an L-shaped highway that connects the rural western Montgomery County communities of Dawsonville and Boyds with Germantown, Gaithersburg, and Interstate 270 (I-270) in the suburban central part of the county. The highway also provides access to Seneca Creek State Park, the National Institute of Standards and Technology, and several commuter rail stations along MARC's Brunswick Line, which the highway parallels. MD 117 was the inspiration for the 1971 hit song "Take Me Home, Country Roads".
View east along MD 117 in Blocktown
Eastbound along MD 117 viewed from I-270 in Gaithersburg
MD 117's underpass of CSX's Metropolitan Subdivision rail line viewed from the highway's junction with MD 121 at Boyds
Maryland Route 28 is a state highway in the U.S. state of Maryland. The state highway runs 37.38 miles (60.16 km) from U.S. Route 15 in Point of Rocks east to MD 182 in Norwood. The western portion of MD 28 is a rural highway connecting several villages in southern Frederick County and western Montgomery County. By contrast, the eastern portion of the state highway is a major east–west commuter route, particularly within Gaithersburg and Rockville.
View east along MD 28 east of Point of Rocks
Intersection of MD 28 and Mt. Ephraim Road next to the underpass of CSX's Metropolitan Subdivision in Dickerson
MD 28 westbound in downtown Rockville
MD 28 eastbound in Rockville