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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
Hammer-Lagerquist 33-13

25-091-21528-00-00

 Xplor Energy Corp Williston Comertown Sheridan, MT-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Hammer-Lagerquist 33-13
Glaspey SWD 1

33-013-90394-00-00

 Windridge Oil & Gas Williston Short Creek Burke, ND-US SlabS Photos Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Glaspey SWD 1
#2 Linnebur

05-001-06668

 X O Exploration Denver Homestead Adams, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #2 Linnebur
Wolf 12L-0103

05-123-39421

 Whiting Oil & Gas Corp. Denver Redtail 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 Wolf 12L-0103
DDH-06-02

N/A

 Webco Quarry El Paso Quarry El Paso, AR-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on DDH-06-02
Miller 22-7

05-017-06068

 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 Miller 22-7
Miller 22-1

05-017-06101

 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 Miller 22-1
Lowe 12-7

05-017-06085

 UPRR Las Animas Arch Golden Spike Cheyenne, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Lowe 12-7
Lowe #41-11

05-017-06067

 UPRR Las Animas Arch Golden Spike Cheyenne, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Lowe #41-11
Davies #41-5

05-005-06152

 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 Davies #41-5
Cottonwood 08E-0504

05-123-40408

 Whiting Oil & Gas Corp. Denver Redtail 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 Cottonwood 08E-0504
1-25 Richardson

05-081-06561

 Western Expl. Ltd 2 GGR Wildcat Moffat, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 1-25 Richardson
Carlson 41-29

05-005-06096

 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 Carlson 41-29
#1 Glenn Lowery

49-005-21075

 W O. Callaway PRB Kingsbury Creek 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 Glenn Lowery