(Matt York | AP file photo )In this Aug 11, 2015, file photo, Navajo Nation Council Delegate Davis Filfred walks along the San Juan River in Montezuma Creek, Utah, downstream from a spill containing lead and arsenic from the abandoned Gold King Mine in Silverton, Colo.
Brian Maffly has worked for The Tribune off and on since 1994. Maffly roams Utah, covering public land and environment.