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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
#1 Davies

05-005-06167

 Tom Vessels Denver Wildcat Arapahoe, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Davies
#1 Fed.

49-005-20892

 Texakota PRB Wildcat Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Fed.
54X-4 (Yowlumne Unit B)

04-029-55390

 Tenneco Oil Co (CRPC) San Joaquin Yowlumne Kern, CA-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 54X-4 (Yowlumne Unit B)
Chorney State #1

05-001-06180

 Tom Vessels Denver Wildcat Adams, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Chorney State #1
Gov’t Chapin 1-8

49-037-05654

 Texas American Oil Company GGR West Desert Springs Sweetwater, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Gov’t Chapin 1-8
#1 Deter

05-005-06081

 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 #1 Deter
#2 Price Brothers (aka Price Brothers ‘A’ 1)

05-005-06173

 Tom Vessels Denver Peoria North Arapahoe, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #2 Price Brothers (aka Price Brothers ‘A’ 1)
Moran-Midland #1

49-005-05424

 Sinclair PRB Halverson Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Moran-Midland #1
Woodson Fed #1

25-075-21700-00-00

 Sinclair PRB Wildcat 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 Woodson Fed #1
Moran #4

49-005-05458

 Sinclair PRB Halverson Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Moran #4
#1 Henby

49-015-20075

 Skelly DC Wildcat Goshen, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Henby
#1 Vopahl

49-015-20093

 Skelly DC Springer Goshen, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Vopahl
Upper Valley #5

43-017-16028

 Tenneco Upper Valley Garfield, UT-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Upper Valley #5
#68-32 Govt.

49-005-21069

 Stuarco PRB Collums Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #68-32 Govt.