Industry officials say restrictions will cost jobs.
Oxbow Mining, one of the largest employers in the valley, has closed down operations at the Elk Creek Mine in Somerset leaving fears about whether anything can take its place.
Colorado lawmakers are concerned with a provision in the bipartisan budget agreement that would cost the state money for mineral development.
The possible return of uranium mining to southwestern Colorado is supported by some and despised by others. In economically depressed areas, many would welcome the jobs.
As lawmakers return to Capitol Hill and a new Republican House majority is sworn in this week, Colorado GOP Congressman Mike Coffman plans to introduce a bill to stimulate the U.S.