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Maryland Route 121 
highway in Montgomery County, Maryland
2016-10-13 12 09 04 View north along Maryland State Route 121 (Clarkburg Road) at Maryland State Route 117 (Barnesville Road) in Boyds, Montgomery County, Maryland.jpg
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Instance of road
LocationMontgomery County, Maryland
Highway system
Owned by
Maintained by
Inception
  • 1927
Length
  • 3.96 mi
Authority control
Blue pencil.svg
Maryland Route 121 (en); Maryland Lō͘-sòaⁿ 121 (nan); Maryland Route 121 (de) Highway im US-Bundesstaat Maryland (de); autoroute américaine de l'état de Maryland (fr); highway in Montgomery County, Maryland (en); jalan di Amerika Serikat (id); כביש בארצות הברית (he); weg in Maryland, Verenigde Staten van Amerika (nl) Clarksburg Road (en)