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Home > Colorado Geology > Statewide Maps
Statewide Maps 
 

GIS Mapserver Applications

Earthquakes of Colorado

This map offers three ways to access Colorado earthquake information:The map server displays a map of earthquakes within Colorado. This interactive map allows quick identification of earthquake events by displaying a pop-up information box (called a maptip) containing the date, time, magnitude, location and depth of the event when resting a cursor over any of the earthquake symbols. The map legend in the leftmost web frame shows the data layers and how each feature is symbolized. More information about the map layers can be found by clicking on the links on the right side of the map server window. This requires the Autodesk MapGuide Plug-in.

Late Cenozoic Fault and Folds of Colorado (coupled with the Earthquakes of Colorado mapserver)

This is a map of color-coded faults within Colorado that are known or suspected to have moved during the late Cenozoic (approximately the last 23.7 million years). This interactive map allows quick identification of structures by displaying a pop-up information box (called a maptip) containing the name, identification, and age of the structure, when resting a cursor over any of the faults. Other layers in the map also contain maptips. The map legend in the leftmost web frame shows the data layers and how each feature is symbolized. Zooming in to the map displays different information layers. For instance, highways appear when the map is zoomed to 1:500,000.

Colorado landslide map

This map shows the distribution of landslides in Colorado that have been inventoried from published geologic and geologic hazard maps.  Each landslide polygon can be queried for the specific map citation.  This data has been digitized from several different map scales.  Smaller scale (where features are small) coverages will not be shown if you zoom in beyond an appropriate scale.  For other limitations, read the introductory page.

Statewide Historic Underground Coal Mine Extents and Reported Coal Mine-Related Subsidence Events Map

This map shows the distribution of known historic underground coal mining activities (shown as red shaded areas) and related subsidence events (shown as green dots) that have been reported to the State. The map is intended to be used up to a scale of 1:20,000. Data will not be shown if you zoom in beyond an appropriate scale. The base map is from the 2009 NAIP aerial photography. A World Street Map layer is included for street names to help with locating areas of interest.

Extent of Glaciers in Colorado during last Ice Age

This map shows where glaciers were located in Colorado during the Pleistocene Epoch. The outlines for the glaciers were compiled by Dr. Jack Reed of the US Geological Survey.

Granitic Rocks of Colorado 

This map shows the distribution of granitic rocks in Colorado. The red areas are granitic rocks intruded during the late Cretaceous and Tertiary Periods. The green areas were intruded about 1 billion years ago. The yellow areas were intruded about 1.4 billion years ago and the purple areas were intruded about 1.7 billion years ago. Pink areas are not dated. The data for this map was compiled by Vince Matthews from the Geologic Map of Colorado by Ogden Tweto (1979) and its digital version by Green
(1992).

Metamorphic Rocks of Colorado

The distribution of metamorphic rocks are shown in red on this map. Virtually all of the metamorphic rocks are Proterozoic in age. The data for this map was compiled by Vince Matthews from the Geologic Map of Colorado by Ogden Tweto (1979) and its digital version by Green
(1992).

Sedimentary Rocks of Colorado

The distribution of sedimentary rocks are shown in red on this map. Virtually all of the sedimentary rocks are Phanerozoic in age. The data for this map was compiled by Vince Matthews from the Geologic Map of Colorado by Ogden Tweto (1979) and its digital version by Green
(1992).

Volcanic Rocks of Colorado

The distribution of volcanic rocks are shown in red on this map. Calderas are shown in tan. Virtually all of the volcanic rocks are Cenozoic in age. The data for this map was compiled by Vince Matthews from the Geologic Map of Colorado by Ogden Tweto (1979) and its digital version by Green
(1992). Karen Morgan provided the caldera outlines.

1 meter 2009 NAIP Aerial
Photography of Colorado

National Agricultural Imagery Program (NAIP) is administered by the USDA.  The objective is to acquire aerial imagery during the agricultural growing seasons in the continental U.S.   The imagery is acquired at a one-meter ground sample distance (GSD) with a horizontal accuracy that matches within six meters of photo-identifiable ground control points, which are used during image inspection. The default spectral resolution is natural color (Red, Green and Blue, or RGB).  Click here to visit the USDA's NAIP site.

Points of Geologic Interest

This map shows points of geologic interest in Colorado from our RockTalk. These locales are by no means all of the interesting points in Colorado. Rather, they are locations where there are docents or self guiding signs to help you appreciate the geology.
To use this map click the information pointer on the dots. This will bring up an information panel. Click on the arrow in the upper right corner of that panel and it will give you the information on that particular location.

Geochemical Analyses of Carbonate Rocks in Colorado

This is a map based on the data within CGS Publication Information Series 57.  It provides existing location, geological, and geochemical data for sedimentary carbonate rock samples collected throughout Colorado by various institutions or individuals. To use this map click the information pointer on the dots or polygons. This will bring up an information panel. Click on the arrow in the upper right corner of that panel and it will give you the information on that particular location.

1 meter LiDAR Hillshaded DEM of the San Luis Valley in Colorado

Mapviewer of a hillshaded 1m resolution LiDAR DEM of the San Luis Valley, Colorado.

Digital Maps

1:24:000 Scale Quad Mapping

 

Geothermal Maps

Gravity Map of Colorado

Magnetic Map of Colorado

This is actually not a magnetic map, but is a map showing the magnetic properties of Earth's crust in Colorado.  Different rocks have different magnetic properties. It is created from data collected largely by a magnetometer towed by an airplane.

 
 
 
 

Last Updated: 8/27/2012 4:19 PM 
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