English

Abstract

Nevada has an estimated 300,000 abandoned mine land (AML) features, of which about 50,000 represent significant risks to public safety. Almost every year there are injuries or deaths related to AML sites, from causes ranging from falls and collapses to drownings, asphyxiations, and motor vehicle accidents. The BLM Nevada State Director has established a goal of securing or eliminating such hazards near population and recreation centers, and other areas of high public use. A GIS project was developed to locate, analyze, and prioritize hazards. A programmatic Environmental Assessment was developed to expedite NEPA compliance. Extensive clearances for land and mining claim status, bats and other wildlife, protected plants, and cultural resources are required prior to backfilling. Spreadsheets track clearances and resources. The State of Nevada AML program includes inventory and fencing by Nevada Division of Minerals staff, summer interns and volunteers from prospecting organizations and Eagle Scouts, as well as public education (Stay Out and Stay Alive), all of which are integral to the remediation process. An innovative cooperative effort to do clearances and actual dirtwork for permanent closures includes representatives from the Nevada Division of Minerals, the Nevada Mining Association, the Nevada Natural Heritage Program, Nevada Department of Wildlife, Bat Conservation International, heavy equipment dealers, individual active mines, trucking companies, and others. This team works closely with a minimum of formality to rapidly clear and close dangerous sites. Over 80 backfills were done last year. Options for temporary and permanent mitigation, including gating, will be discussed. Obstacles and the means to overcome them will be presented, with specific lessons learned. Emerging future hazard issues related to pit lakes will be brought forward. Additional