From the eastern High Plains, to the central Rockies soaring more than 14,000 ft (4,200 m) above sea level, and to the western red-rock canyons, Colorado has incredibly diverse rocks, minerals, and …

From the low-lying eastern plains, to the central peaks soaring more than 14,000 feet above sea level, to the western red-rock canyons: the colorful landscape of Colorado embodies some of the most varied, …

Explore our extensive collection of free digital publications, including reports, maps, and guides on geology, water, minerals, energy, and hazards— offering valuable insights for professionals, …

Geologic mapping involves plotting the location and attitude of the various rock units, faults, and folds on a base map. Geologic maps are used to investigate geologic hazards, mineral resources, …

For example, in Colorado, we can study the features of modern dunes in the Great Sand Dunes National Park and compare them to the ancient deposits of the 250 million-year-old Lyons sandstone found …

“On all the broad extent of these United States certainly no region can be found which represents more facts of interest, more opportunities for investigation, and greater possibilities of new discoveries, …

Volcanic igneous rocks are widespread throughout Colorado. At one time, about sixty percent of Colorado was covered by volcanic rocks but much of that coverage has since eroded. Volcanic rocks …

Following is an overview of natural and geologic hazards, as legally defined in Colorado, and a description of the role of the CGS in conducting land-use reviews and assisting local governments in …

Colorado contains an abundance of mineral resources. The state has a long history of mining that started during the 1858 Colorado Gold Rush (also known as the Pikes Peak Gold Rush) before the …

We are slowly building out our library of online GIS maps that offer refined views of Colorado geology along the associated derivatives. We know that these are of use to our various constituencies.