U.S. Route 40 in Colorado
U.S. Route 40 (US 40) is a part of the U.S. Highway System that travels from Silver Summit, Utah, to Atlantic City, New Jersey. In the U.S. state of Colorado, US 40 is a major east–west route. It crosses the Rocky Mountains, passing over the Continental Divide at Berthoud Pass before descending to the Front Range. It then traverses through the Denver Metro Area, then exits by following Interstate 70 (I-70) and US 287. It is concurrent with US 287 for about 145 miles to Kit Carson. US 40 exits into Kansas east of Arapahoe in Cheyenne. At a length of almost 500 miles, US 40 is the longest numbered route in the state.
US 40 in Byers Canyon between Parshall and Hot Sulphur Springs. The Union Pacific railroad line is visible on the left. The Colorado River is at the bottom of the canyon and is not visible.
View along US 40 in Mount Vernon Canyon, Colorado, 1942. Photo by Andreas Feininger.
US 40 westbound concurrent with I-70 BL and US 287 on Colfax Avenue in Denver
Berthoud Pass is a high mountain pass in central Colorado, in the Front Range of the Rocky Mountains of the western United States.
View from the summit of Berthoud Pass
Harry Yount at Berthoud Pass in 1874
The pass in 1941
Berthoud Pass Lodge July 1963
