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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
A.J. Krejci 184-1

42-371-38891

 Sabine Oil & Gas LLC Permian Wolfbone Pecos, TX-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on A.J. Krejci 184-1
Fed. 33-12 (12-10)

25-075-21355-00-00

 R.S. Boekel 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 Fed. 33-12 (12-10)
6 Community

05-069-06137

 Pomeroy Production 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 6 Community
Livingston Ridge #1

30-015-26398

 Phillips Petroleum Co Permian Cabin Lake Eddy, NM-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Livingston Ridge #1
PLU Nq. LjE.x-1010

P11656

 Pluspetrol S.A. Neuquen Loma Jarillosa Este - Puesto Silva Oeste Neuquen-AR SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on PLU Nq. LjE.x-1010
James “A” #8

30-015-26304

 Phillips Petroleum Co Permian Cabin Lake Eddy, NM-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on James “A” #8
#3 Vincent ‘A’

49-005-20933

 Phillips Petroleum Co PRB Oedekoven Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #3 Vincent ‘A’
James “E” #4

30-015-26371

 Phillips Petroleum Co Permian Cabin Lake Eddy, NM-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on James “E” #4
Vincent A-1

49-005-20932

 Phillips Petroleum Co PRB Oedekoven Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Vincent A-1
#1 Emigh A

49-005-20982

 Phillips Petroleum Co PRB Hunter Ranch 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 Emigh A
Norby #1

25-083-21130-00-00

 Pennzoil Williston Sioux Pass Richland, MT-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Norby #1
May 154-1

42-499-32187

 Peak Energy Haynesville Wildcat Wood, TX-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on May 154-1
UPRR 18 Pan Am 6

05-005-06117

 Pan AM 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 UPRR 18 Pan Am 6
UPRR #43

05-123-07217

 Pan AM Denver Spindle Weld, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on UPRR #43