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Core Repository for Earth Sciences (CORES)

Core Repository for Earth Sciences (CORES)

The joint CGS/Mines Core Repository for Earth Science (CORES) showcases a diverse array of rock cores and cuttings, primarily from across Colorado but also including materials from other regions. These samples are invaluable for understanding subsurface geologic conditions, including energy and mineral resources, groundwater systems, and fluid migration pathways. Many cores have associated high-resolution images that allow for remote viewing and analysis. You can browse the map or search the repository by location, formation, or well name to find samples relevant to your area of interest.

This repository is a collaborative effort between the Colorado Geological Survey and the Colorado School of Mines, with funding support from CGS, the U.S. Geological Survey, and Robert J. Weimer.

Special thanks to Matthew “Josh” Shaw, who cataloged and imaged the cores, and to Stephen Sonnenberg for his technical consultation.

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Cores Data

Table of CORES Well Information
Well Name Company Basin Field Location Attributes View more information about
Peterson 13-20

05-069-06086

 Crystal Exp & Prod Denver Fort Collins Larimer, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Peterson 13-20
Berthoud State #2

05-069-06051

 Coquina Oil Denver Berthoud Larimer, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Berthoud State #2
Berthoud State #3

05-069-06054

 Coquina Oil Denver Berthoud Larimer, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Berthoud State #3
#1 Chapman

05-001-06557

 Davis Oil Denver Jamboree Adams, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Chapman
McKinnon 33-32-11-7

43-033-30071

 CTD, Inc GGR Wildcat Rich, UT-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on McKinnon 33-32-11-7
Stope Leach 4

N/A - CSM Mine Well

 CSM/USBM D-Right Upper Drift Clear Creek, CO-US ButtsS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Stope Leach 4
Stope Leach 3

N/A - CSM Mine Well

 CSM/USBM D-Right Upper Drift Clear Creek, CO-US ButtsS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Stope Leach 3
Stope Leach 1

N/A - CSM Mine Well

 CSM/USBM D-Right Upper Drift Clear Creek, CO-US ButtsS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Stope Leach 1
Keith Powell #5 (Unit 6412)

25-075-21739-00-00

 Consolidated Oil PRB Bell Creek Powder River, MT-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Keith Powell #5 (Unit 6412)
COPRC Gulf Resdeln 7-24-83-7

00/07-24-083-07W4/0

 ConocoPhillips/Gulf Alberta Resdeln RMWB, Alberta-Canada SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on COPRC Gulf Resdeln 7-24-83-7
Patti 32-29

05-043-06182

 Comet Ridge Canyon City Embayment Florence-Canon City Fremont, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Patti 32-29
Bull 42-4

05-043-06158

 Comet Ridge Canyon City Embayment Florence-Canon City Fremont, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Bull 42-4
Fed. #1-33

49-033-20032

 Cleary PRB Wildcat Sheridan, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Fed. #1-33
Diamond Ring #44-26

49-025-20830

 Clark Oil Wind River North Grieve Natrona, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Diamond Ring #44-26