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U.S. Geological Survey Geologic Investigations Series I-855-G

Geologic Map of the Boulder-Fort Collins-Greeley area, Colorado

By Roger B. Colton

Geology compiled in 1976; GIS database by Theodore R. Brandt, David W. Moore, and Kyle E. Murray; Digital Cartography by Theodore R. Brandt; Edited by Alex J. Donatich

Version 1.1

thumbnail image of map

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I-855-G v1.0 PDF file (64.31 MB)

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I-855-G v1.1 PDF file (6.81 MB)

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Text-only PDF file (40 KB) (This version of the report is accessible as defined in Section 508.)


I-855-G MET file (48 KB)

Metadata file

For a full description of map units and base map themes, please see:

OFR-03-024: A Spatial Database of Bedding Attitudes to Accompany Geologic Map of Boulder-Fort Collins-Greeley Area, Colorado

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I-855-G TAR.GZ file (19.14 MB)
I-855-G ZIP file (19.14 MB)
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