North of the Gaithersburg area, Interstate 270 passes what urbanized census-designated place in Montgomery County, Maryland?
Interstate 270 (Maryland): Interstate 270 (abbreviated I-270) is a 34.70 mi auxiliary Interstate Highway in the U.S. state of Maryland that travels between I-495 (the Capital Beltway) just north of Bethesda, Montgomery County and I-70 in the city of Frederick in Frederick County. Interstate 270 (Maryland):  North of the Gaithersburg area, the road continues through the northern part of Montgomery County, passing Germantown and Clarksburg as a six- to eight-lane highway with a HOV lane in the northbound direction only. Germantown, Maryland: Germantown is an urbanized census-designated place in Montgomery County, Maryland.
Germantown