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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
#32-7 Oliver Morris

05-031-06419

 Champlin Denver Third Creek Denver, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #32-7 Oliver Morris
#2 Jefferies 32-11

05-005-06240

 Champlin 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 #2 Jefferies 32-11
#1 Angel USA

49-009-20196

 Champlin PRB Dry Fork Converse, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Angel USA
Spargo 1-36

05-033-06091

 Celsius Energy Paradox Papoose Canyon Dolores, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Spargo 1-36
9-2 Powell Federal

49-009-22276

 Celcius Energy PRB Spearhead Ranch Converse, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 9-2 Powell Federal
Walters 7-30

49-005-26709

 C&K Petroleum 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 Walters 7-30
M. Goertz 30-42

49-031-20041

 Bass Enterprises DC Wildcat Platte, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on M. Goertz 30-42
Meadow Springs 9-31

05-069-06244

 Bass Enterprises Denver Wildcat Larimer, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Meadow Springs 9-31
O’Neal Gray #1

49-005-21008

 Bethol Corp. 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 O’Neal Gray #1
#3-20 Davies

05-063-06156

 BHP Petroleum 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 #3-20 Davies
Pfister 42-24

49-027-20760

 BHP Petroleum PRB Wildcat Niobrara, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Pfister 42-24
Anschutz Equus Farms 4-62-33-0108CH2

05-123-39734

 Bill Barrett Corp Denver Wattenberg Weld, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Anschutz Equus Farms 4-62-33-0108CH2
Bliss 4S-15-19-67H

49-021-20809

 Bill Barrett Corp DC Wildcat Laramie, WY-US SlabS Photos Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Bliss 4S-15-19-67H
Coffelt 5-61-35-0108BH2

05-123-40451

 Bill Barrett Corp Denver Wattenberg Weld, CO-US SlabS Photos Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Coffelt 5-61-35-0108BH2