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.

Search for Cores

Search Criteria

Additional Criteria

Cores Data

Table of CORES Well Information
Well Name Company Basin Field Location Attributes View more information about
#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 LaCoy

49-043-20077

Tenneco Bighorn Rattlesnake Washakie, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 LaCoy
Van Irvine #2

49-019-20418

Southland PRB Holler Draw Johnson, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Van Irvine #2
1-A Henby

49-015-20077

Skelly DC Torrington 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-A Henby
#1 Wilkins

49-015-20070

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 Wilkins
#1 Kinsman

05-123-07545

Sotexco & Marlin Denver Wildcat Weld, CO-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on #1 Kinsman
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
#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
Garrett E.L #1

49-005-23174

Sun Oil PRB Bugher Draw Campbell, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on Garrett E.L #1
Yeik #1

49-015-20072

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 Yeik #1
#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.
Hara

49-015-20078

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 Hara
E. Salt Creek A-11

49-025-08993

Sinclair PRB Salt Creek Natrona, WY-US SlabS Right arrow icon A white rectangle with a right arrow icon inside, representing a navigation symbol. View More Information on E. Salt Creek A-11