Colfax Avenue
Colfax Avenue the main street that runs east and west through the 
Denver Metropolitan Area. Before the Interstate Highway System was constructed it served as U.S. Highway 40 (it still is but is not used as a highway). For most of its length Colfax contains commercial buildings and is generally a four-lane street. In the east it passes through 
Aurora, Colorado, then 
Denver proper, then on the west, through 
Lakewood, Colorado.
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