DENVER – A coalition of tribes, local governments and environmental groups Tuesday petitioned the federal government to change mining rules to prevent future contamination of drinking and...

DENVER – An internal investigation by the Environmental Protection Agency into the Gold King Mine spill found that an “insufficient” analysis of water pressure led to the spill. Testing the water...

Republican presidential candidate Jeb Bush at a town hall Tuesday in Englewood, Colo., defended a recent “anchor baby” remark that put him at odds with Asian Americans this week. “My record, not...

DENVER - A coalition of tribes, local governments and environmental groups Tuesday petitioned the federal government to change mining rules to prevent future contamination of drinking and...

DENVER – Coal-industry supporters had a large presence Tuesday near Denver, urging federal officials not to change how the government collects royalties on coal mined from federal land....

DENVER – Federal regulators Tuesday announced the first-ever national methane regulations aimed at significantly cutting the greenhouse gas. The expected announcement was met by cheers from the...

With improving news about the Animas River, officials can turn their attention to more long-term impacts to the budget and contaminated sediment. State and federal health officials say Animas...

Colorado Attorney General Cynthia Coffman visited Durango on Wednesday to evaluate the aftermath of the Animas River debacle. Legal questions linger after the Environmental Protection Agency...

Environmental interests appear unimpressed by declarations from state and federal officials that the Animas River has returned to “pre-event” water-quality conditions. Environmental activists,...