Orange water was flowing from a century-old gold mine in Utah. Hereâs who paid to clean it up. The drainage evoked Gold King Mine Spill of 2015. (Zak Podmore | The Salt Lake Tribune) In December 2020, a bat gate and concrete settling dam were installed at the entrance to the Marvin Tunnel gold mine by the U.S. Forest Service to protect Blanding's water supply. April 26, 2021.   | May 5, 2021, 1:00 p.m. Blanding ⢠In August, along a graded dirt road high in the Abajo Mountains of southeastern Utah, campers and hikers spotted a small stream of bright orange-red water. It was flowing from a 100-year-old gold mine shaft known as the Marvin Tunnel toward the creek that supplies the city of Blanding, home to 3,500 people, with its municipal water.