Glenwood Canyon is a rugged scenic 12.5 mi canyon in western Colorado in the United States. Its walls climb as high as 1,300 feet above the Colorado River. It is the largest such canyon on the Upper C

The Hanging Lake Tunnel is a dual bore highway tunnel carrying Interstate 70 and U.S. Highway 6 through the southern wall of Glenwood Canyon, just east of exit 125 in Garfield County, Colorado, United