Assembly Bill 313, sponsored by Assemblywoman Sarah Peters, D-Reno, would require the backfilling of open pit mines once mining companies are done extracting ore and other minerals from the site.

Construction began this week on an open-pit mine at the largest lithium deposit in the United States, even as tribes and environmental groups continue a years-long effort to block the project ...

It's the latest development in a more than two year legal battle over a plan by the Canadian firm, Lithium Nevada, to build an open pit mine near Thacker Pass, along a remote stretch of sagebrush ...

Open pit mining at Granite Creek occurred on the property between 1980 and 1999 and underground test mining was conducted in the early 2010s. ( Image courtesy of i-80 .

The non-profit conservationist group has worked for over five years to protect the Tiehm's buckwheat from open pit mines like the lithium facility proposed by Ioneer.

The last standing building above the Yellow Pine Pit open-pit gold mine in the Stibnite Mining District in central Idaho, Sept. 19, 2018. The U.S. Forest Service on Friday, Oct. 28, made public an ...

Located in Yerington, Nevada, Pumpkin Hollow spans 22,862 acres and consists of two primary assets: a large-scale, permitted, open-pit copper project and a fully constructed underground copper ...

Add to that the enormous open-pit mines dotting the surface of the planet that resemble nothing so much as empty lakes waiting to fill back up with water if given a chance, ...