USGS – The Digital Geologic Map of Colorado in ARC/INFO Format — This map was produced from Tweto’s 1979 Geologic Map of Colorado and is available in ArcGIS and GoogleEarth (KML) file formats. USGS The National Map — Includes a complete range of elevation, hydrography, historical topographic datasets and much more for download.

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National-scale geologic map to support national and regional level projects, including mineral resource and geo-environmental assessments.

2024年6月23日 · Check out the Geologic map of Colorado. Map published by the U.S. Geological Survey

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, groundwater aquifers, and just plain geoscience.

The definitive and now-classic state geologic map and explanation sheet for Colorado — “held as one of the finest examples of a state geologic map” — as compiled/mapped by Ogden Tweto. See MI-63 Geologic Sections Across Colorado (Tweto) for cross sections.

This geologic map uses a combination of lines, symbols, and colors to show the composition and structure of earth materials and their distribution across and beneath the Earth's surface.

Sheets I-IV are triangulations, drainage, land classification, and geologic maps of Colorado west of longitude 102°, on the scale of 12 miles to the inch.

On this site you can explore the geologic history of Colorado. Dig into the details of individual basins using the basin map, stratigraphic charts and sections pages. Journey through time with maps, fossils and videos of Colorado over the past 550 million years.

ON-004-01 — StateMap Progression Map — shows the quadrangles that have been geologically mapped across the state, both USGS and CGS maps. Of Colorado’s approximately 1,800 7.5-minute quads, more than 500 have been mapped and there are usually around ten more that are in progress at any one time.