Fire officials announced Gov. Hickenlooper is preparing to issue a state of disaster declaration.
Energy and Environment
All Energy and Environment Stories
There are between 200,000 and 500,000 sage grouse in the West, down from a peak population of about 16 million.
More than 400 firefighters supported by six helicopters and two air tankers are fighting the fire.
The Navajo Nation joins forces with Colorado, New Mexico and three other tribes to help recover endangered fish species.
"It's not gonna be one of those fires where they can just go out and we hammer it and it's out in two or three days,” official says.
The electric scooters meet a car-free public transportation desire, but infrastructure shortcomings and lack of city preparedness cause issues.
Tests of a well at Sugar Loaf Fire Station 1 found levels 10 times above the EPA's health advisory levels.
As Garden of the Gods, Conundrum Hot Springs and Hanging Lake experience record visitors, park officials are scrambling for solutions.
The move effectively ends surface drilling in the city as Top Operating and Cub Creek Energy abandon several active wells and future drilling sites.
Panning for gold is still a past time, one that can not only score you a few gold flakes, but a new perspective on your favorite hiking trails and city parks.
Cities have been trying to control oil and gas development within their borders since the Colorado Supreme Court struck down Longmont's and Fort Collins' bans in 2016.
The station would connect two proposed hyperloop routes: Cheyenne to Pueblo and Denver International Airport to Vail.
Research from atmospheric scientists in Boulder finds that personal care products can create emissions off your body at a level on par with your car’s tailpipe.
The man is accused of bribing Zimbabwean government officials while guiding a Colorado tourist and trying to import ivory illegally into the U.S.