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Digital database of the previously published geologic map of the greater Denver area, Front Range Urban Corridor, Colorado

Dates

Publication Date
Time Period
1979

Citation

Brandt, T.R., and Colgan, J.P., 2023, Digital database of the previously published geologic map of the greater Denver area, Front Range Urban Corridor, Colorado: U.S. Geological Survey data release, https://doi.org/10.5066/P9WC8RKF.

Summary

This digital map shows the areal extent of surficial deposits and rock stratigraphic units (formations) as compiled by Trimble and Machette from 1973 to 1977 and published in 1979 under the Front Range Urban Corridor Geology Program. Trimble and Machette compiled their geologic map from published geologic maps and unpublished geologic mapping having varied map unit schemes. A convenient feature of the compiled map is its uniform classification of geologic units that mostly matches those of companion maps to the north (USGS I-855-G) and to the south (USGS I-857-F). Published as a color paper map, the Trimble and Machette map was intended for land-use planning in the Front Range Urban Corridor. This map recently (1997-1999) was digitized [...]

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Attached Files

Click on title to download individual files attached to this item.

I-856-H_GeMS_Final.gdb.zip 9.8 MB application/zip
I-856-H_GeMS_Final_Shapefiles.zip 16.04 MB application/zip
I-856-H_GeMS_NonSpatialTables.zip 16.49 KB application/zip

Purpose

This digital map can serve various purposes related to land-use planning in the greater Denver metropolitan area. For example, it shows potential shallow aquifers and rock units that may be suitable for waste disposal and aggregate mining. The map distinguishes rock units that are somewhat predictable (dependent on scale and uniformity of the rock unit) in physical properties and mineral content, making the map useful in planning. Given this predictability, experts can use the map to derive thematic maps that show the suitability of surficial materials for various uses by man; or to derive maps that show areas susceptible to certain hazards, for example, swelling soils, heaving bedrock, and landslides. The digital map is designed to provide geologic data at 1:100,000 scale to address urban growth issues and to help resolve conflicts among planned uses of the land.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9WC8RKF

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