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Core Research Center

The USGS Core Research Center is welcoming visitors! Email to request an appointment.  

Any masking, vaccination and testing requirements for visitors are based on CDC, DOI, and USGS policies.  Since these may change in response to the virus, the CRC will include information on current requirements with your appointment confirmation.  

We appreciate your patience and cooperation and look forward to seeing you soon.

The CRC's extensive rock core and cuttings collection is available for study by interested parties. Contact us at CRC@USGS.GOV or (303) 202-4851 to schedule an appointment. Please review our FAQs for help in planning your visit.

In case of bad weather, check the USGS Denver Weather Notification website at Announcements of delayed arrival or closure will be posted by 5:30 a.m.

The Core Research Center is home to 9,800 rock cores and 53,000 cuttings wells that since 1974 has supplied valuable scientific information to academia, government agencies, and industry alike.  The majority of research conducted on the collection to date has been related to natural resource characterization, but the collection has also been studied for many other lines of inquiry. Some examples of past research include a core drilled from Cajon Pass, CA which was drilled to determine fault motions and resistance to plate motion from two plates along an important fault.  Cores from the Enewetak Atoll were originally used to understand the effects of nuclear bursts on geologic structures but have more recently been used in climate studies.  Cores that were drilled in Yellowstone from a 1967-1968 expedition are still being researched to understand the chemistry of the rocks and the interactions with the geothermal fluids of Yellowstone.  Cores from the Green River Formation have been used to understand ancient lake systems and the Paleocene-Eocene Thermal Maximum.  The Castle Pines and Kiowa cores have been used to examine spatial variation on yields for groundwater resources in the Denver Basin and to study the paleobiology of the Upper Cretaceous and Lower Tertiary of the Denver Basin. These are but a few examples of how these valuable resources can continue to contribute to our understanding of earth systems.


Important Notice Regarding Real ID Act Requirements for Entry to Federal Facilities

As of April 30, 2021, all states and territories are issuing IDs that are compliant with the Real ID act. A compliant ID must be presented at TSA checkpoints or for entry to Federal facilities including the Denver Federal Center - home of the CRC. PLEASE NOTE THAT EVEN IF YOUR STATE IS LISTED AS COMPLIANT, IF YOU HAVE AN OLDER LICENSE THAT DOES NOT MEET THE REAL ID ACT CRITERIA, YOU MAY HAVE DIFFICULTY ENTERING THE DENVER FEDERAL CENTER.  Full enforcement of REAL ID begins May 3, 2023, travelers without a compliant or enhanced ID (or other acceptable ID) will not be allowed to fly.  The Real ID Act was passed by Congress in 2005, based on recommendations from the 9/11 Commission. Please check the DHS website for the latest information on the compliance status of your state and how to tell if your ID qualifies. If your ID is not compliant, you might consider acquiring an alternative ID such as a U.S. Passport or U.S. Passport card. More information about the REAL ID Act of 2005, and Secure Driver’s Licenses can be found on this page from the Department of Homeland Security:
The CRC apologizes for any inconvenience to our visitors. 



Publication Notice: Directory of Public Repositories of Geological Materials


U.S. Geological Survey science for the Wyoming Landscape Conservation Initiative—2018 annual report

The Wyoming Landscape Conservation Initiative (WLCI) was established in 2007 as a collaborative interagency partnership to develop and implement science-based conservation actions. During the past 11 years, partners from U.S. Geological Survey (USGS), State and Federal land management agencies, universities, and the public have collaborated to implement a long-term (more than 10 years) science-bas

Core handling, transportation and processing for the South Pole ice core (SPICEcore) project

An intermediate-depth (1751 m) ice core was drilled at the South Pole between 2014 and 2016 using the newly designed US Intermediate Depth Drill. The South Pole ice core is the highest-resolution interior East Antarctic ice core record that extends into the glacial period. The methods used at the South Pole to handle and log the drilled ice, the procedures used to safely retrograde the ice back to

Core Research Center

The Core Research Center (CRC) of the U.S. Geological Survey (USGS), located at the Denver Federal Center in Lakewood, Colo., currently houses rock core from more than 8,500 boreholes representing about 1.7 million feet of rock core from 35 States and cuttings from 54,000 boreholes representing 238 million feet of drilling in 28 States. Although most of the boreholes are located in the Rocky Mount


High Performance Computing for the Advancement of Earth Science- Janice Gordon

Work with USGS scientists to apply high performance computing principles and techniques to solve national and international earth science challenges.

High Performance Computing for the Advancement of Earth Science- Janice Gordon

Work with USGS scientists to apply high performance computing principles and techniques to solve national and international earth science challenges.
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