Colorado Geological Survey

After a 3.2 magnitude earthquake hit Saturday evening near the northeastern Colorado town of Greeley, questions about its connection to oil and gas…

The area where the Collbran mudslide happened has seen similar slides in the past. Geologists say relatively weak rock and steep terrain create a recipe...

Avalanche danger in the mountains has ratcheted up quickly over the past week. Get ready for the possibility of high risk being the norm this season, all…

For the first time, the Colorado Geological Survey has compiled a map highlighting areas across the state prone to sinkholes.A scan of the map shows the…