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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
McCrory #1

05-123-07160

 Tom Vessels Denver Galeton Weld, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on McCrory #1
32-5 G. Davies

05-005-06163

 UPRR Denver Peoria Arapahoe, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 32-5 G. Davies
33-13 Froetschner

05-017-06103

 UPRR Las Animas Arch Ladder Creek Cheyenne, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 33-13 Froetschner
#1 Josie Bledsoe

05-017-06097

 Union Texas Pet. Las Animas Arch Gopher Cheyenne, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Josie Bledsoe
Terra Fed #1

05-123-07168

 Tom Vessels Denver Wildcat Weld, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Terra Fed #1
#1-36 State ‘A’

05-063-06031

 Union Texas Pet. Las Animas Arch Wildcat Kit Carson, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1-36 State ‘A’
#1 Ross

05-073-06007

 Union Texas Pet. Denver Wildcat Lincoln, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Ross
Interstate Racing Assoc. #1 (aka Twin Quin 1)

05-005-06074

 Tom Vessels Denver Peoria Arapahoe, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Interstate Racing Assoc. #1 (aka Twin Quin 1)
41-33 P. Deter

05-005-06131

 UPRR Denver Peoria Arapahoe, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 41-33 P. Deter
#41-11 Jeffries

05-005-06217

 UPRR Denver Byers Arapahoe, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #41-11 Jeffries
Packard #1

05-001-06169

 Tom Vessels Denver Krauthead Adams, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Packard #1
2 Bergquist

15-071-20380

 TXO Prod. Corp. Anadarko Stockholm SW Greeley, KS-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 2 Bergquist
Fed 24-24

49-005-20372

 U.S Natural Gas Corp. PRB Recluse Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Fed 24-24
#1-36 State

05-073-06004

 Union Texas Pet. Denver Wildcat Lincoln, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1-36 State