Colfax Avenue, Strasburg

Colfax Avenue is the main street that runs east–west through the Denver metropolitan area in Colorado. As U.S. Highway 40, it was one of two principal highways serving Denver before the Interstate Highway System was constructed. In the local street system, it lies 15 blocks north of the zero meridian, and would thus otherwise be known as 15th Avenue. The street was named for the 19th-century politician Schuyler Colfax. At just over 50 miles in length, it is known as the "longest continuous commercial street in America." ()