Senators with hard hats ride in a train through the East Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Larimer County, Colorado. Shows rocks, pipe, tracks, possibly a walkway and signs that read: "Safety First, Be Careful" and "Danger Keep Out, Employees on Duty Only."
Senators with hard hats ride in a train through the East Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Larimer County, Colorado. Shows rocks, pipe, tracks, possibly a walkway and signs that read: "Safety First, Be Careful" and "Danger Keep Out, Employees on Duty Only."