Idaho Springs, U. S. 6 and 40 and Interstate 70, 35 Miles West
| Series C28941|
Once a mining boom town and now a tourist mecca at the gateway to the Colorado Rockies. Located on Hwys. U.S. 6 and 40 and Interstate 70, 35 miles west of Denver. Here can be seen the longest mining tunnel in the world. Also famous for its Radium Health Springs and Baths.