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The legislation creates a pilot program under the Environmental Protection Agency that allows nonprofits, governments or landowners to clean up old mines without taking on the risk.

Piles of mine waste that loom above the historic Colorado mountain town of Leadville are a reminder of the city鈥檚 boom days. Now a company wants to 鈥渞emine鈥� some of the waste piles to squeeze more gold out of them.

A group led by the Interior Department has released recommendations to reform mining practices on public lands.

The U.S. Environmental Protection Agency will take the first major steps this summer to clean up wastewater flowing from dozens of old mines at a鈥�

This week two Republican members of Colorado鈥檚 congressional delegation -- Sen. Cory Gardner and Rep. Scott Tipton -- introduced a bill to create a pilot鈥�

In early August three years ago, Barb Horn stood along the banks of the Animas River in the city of Durango, Colorado. Word had spread of a mine waste鈥�

Gov. John Hickenlooper has formally requested that a set of abandoned mines above Silverton be listed as a Superfund site. The request comes nearly seven鈥�

Carol and John Wagner鈥檚 ranch is surrounded by green pastures, with spectacular views of the northern San Juan mountains. The Wagners moved here from鈥�

The U.S. Forest Service says it鈥檚 weighing options when it comes to renewing a closure of caves and abandoned mines in Colorado and four other states. The鈥�

Colorado Senator Mark Udall took to the US Senate floor Tuesday morning in an attempt to find better ways volunteers can legally help clean up abandoned鈥�