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Attorneys general hear account of Gold King Mine spill

Prosecutors learn about complexities of cleaning mines

Coal industry attacks federal royalty plan

Environmentalists, miners clash in listening session

National methane rule calls for 45 percent cut

Regulation focuses on gas producers

Debate over death penalty

DENVER – Two high-profile murder cases have brought the death-penalty debate back to life in Colorado. After James Holmes was sentenced to life in prison without parole for killin...

Clean-air rule splits Colorado

Some call for lawsuit, others hail progress against carbon pollution

Sinclair signs removed from ‘toxic’ site

Almost five months after seeking a court order, the Wyoming-based Sinclair Oil Corp. was allowed to remove its signage from a defunct gas station between Cortez and Mancos. The Mo...

Utah mill accused of possible threat

Ute tribe claims Clean Air violation

BLM weighs the future of oil and gas development

Master lease plan gets mixed reviews

BLM weighs future of oil and gas

Master lease plan gets mixed reviews

Oil spill reported on Ute land

Corroded pipeline ruptures; investigation continues

Budget for boat checks slashed

McPhee risks invasive species

Is Silverton ready for a cleanup?

As mines continue to leach pollutants, some residents reconsider Superfund