Colorado: Durango and Silverton Narrow Gauge Railway
The Durango and Silverton Narrow Gauge Railway is a heritage railway that crosses Colorado, connecting its titular cities. The railway was originally constructed during the Gold Rush, and opened in 1882 to transport silver and gold that had been mined from the San Juan Mountains. The railroad now operates as a museum on wheels, but an ongoing lawsuit claims that sparks on its tracks started a wildfire in the summer of 2018 which may ultimately impact its future.