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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
3-35 Champlin

49-037-20944

 Luff Exploration GGR Wildcat Sweetwater, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 3-35 Champlin
3-27 Champlin Fee

49-037-20645

 Luff Exploration 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 3-27 Champlin Fee
2-5 Champlin

49-037-20562

 Luff Exploration GGR Patrick Draw Sweetwater, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 2-5 Champlin
2-29 Champlin Fee

49-037-20630

 Luff Exploration GGR Patrick Draw Sweetwater, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 2-29 Champlin Fee
2-27 Champlin

49-037-20629

 Luff Exploration GGR Wildcat Sweetwater, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 2-27 Champlin
Fed. Sullivan # 25-1

49-005-21023

 J.M Huber 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 Fed. Sullivan # 25-1
#1 Fed Taylor

49-005-21261

 J.C. Paine PRB Olmstead 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 Taylor
#1 Cowen

05-087-07149

 Jake C. Hamon Denver Wildcat Morgan, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Cowen
14-1 Fed Land Bank

05-081-06179

 Kenmerer Coal CO. GGR Big Hole Moffat, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on 14-1 Fed Land Bank
Disposal #1 (Sequoyah 1)

35-135-20024-00-00

 Kerr-McGee Arkoma Sequoyah, OK-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Disposal #1 (Sequoyah 1)
Huntsman Storage 26

26-033-22173-00-00

 KN Energy Corp Denver Huntsman Storage Cheyenne, NE-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Huntsman Storage 26
#2 Kallsen

05-031-06390

 Koch Expl. Denver Third Creek 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 Kallsen
Fletcher Gulch Federal 4-24-2 (pilot hole)

05-103-11888

 Laramie Piceance Fletcher Gulch Rio Blanco, CO-US SlabS Photos Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Fletcher Gulch Federal 4-24-2 (pilot hole)
Hardy #21-1

25-017-21061-00-00

 Jack Johnson PRB Wildcat Custer, MT-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Hardy #21-1