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Colorado Geological Survey
The Colorado Geological Survey (CGS) is an agency of state government within the Department of Natural Resources whose mission is to help reduce the impact of geologic hazards on the citizens of Colorado, to promote the responsible economic development of mineral and mineral fuel resources, to provide geologic insight into water resources, and to provide geologic advice and information to a variety of constituencies. This site contains extensive information about Colorado geology such as maps, a geologic time scale for the state, program information, and state field trip information. This site hosts the Avalanche Information Center which contains avalanche forecasting and education center details. Publications report on geologic hazards, land use, environmental geology, mineral resources, oil, gas, coal, geologic mapping and earthquake information for the state. There are online editions of RockTalk, which is a quarterly newsletter published by the Colorado Geological Survey dealing with all aspects of geology throughout the state of Colorado. Links are provided for more resources.
Intended for grade levels:
  • General public
Type of resource:
  • For the classroom:
    • Guide for field trip
  • Visual:
    • Map
    • Photograph
  • Text:
    • Ref. material
    • Report
  • Geological Sciences:
    • Geologic time
    • Geology
    • Mineralogy or petrology
  • Natural hazards
Technical requirements:
Adobe Acrobat reader
Cost / Copyright:
No cost
Copyright and Other Restrictions Information is Unknown.
DLESE Catalog ID: DLESE-000-000-002-793
Resource contact / Creator / Publisher:
Publisher: Colorado Geological Survey