Westbound I-70 climbing up the viaduct from Reverse Curve Tunnel at the eastern end of Glenwood Canyon

West portal into Hanging Lake Tunnel on I-70 in Glenwood Canyon

Triple-stack in Hanging Lake Tunnel - Colorado River under Union Pacific train under Interstate 70

Amtrak's California Zephyr, Colorado River, and US 6 in Glenwood Canyon in the 1980s, before I-70 was constructed

Photo from the California Zephyr train of the viaduct in Glenwood Canyon

Rafting Glenwood Canyon