A federal judge in Denver is considering a lawsuit to stop the expansion of coal mining in northwestern Colorado.
Just like the mountains play an important role in winter storms, they also help determine who sees bitter cold.
A 17-year-old boy was killed Friday afternoon when the pickup truck he was driving collided with a tractor-trailer near Craig.
The plan to cut emissions by 30 percent by 2030 attracted crowds to regional hearings this summer, including Denver.
Environmental Protection Agency officials are visiting northwestern Colorado to learn more about how proposed pollution rules for power plants could affect a region where the economy is tied to coal.
Single-engine air tankers are helping firefighters battle a new wildfire in northwestern Colorado.
Firefighters have kept a 32-square-mile blaze from spreading in northwestern Colorado as scattered showers fall in the area.
The Alkali Fire in northwestern Colorado grew to 20,000 acres overnight amid 90-degree heat and erratic winds.
A wildfire burning in Moffat County has grown to be an estimated 8,000 acres on Wednesday and is zero percent contained.
A historic group is fighting to save what it calls a key to the history and founding of Colorado.