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CRC Entrance

Entrance to the CRC on the Denver Federal Center


About the Core Research Center

The Core Research Center (CRC) was established in 1974 by the U.S. Geological Survey (USGS) to preserve valuable rock cores for use by scientists and educators from government, industry, and academia. The cylindrical sections of rock are permanently stored and available for examination and testing at the core storage and research facility in Denver, Colorado. The CRC is currently one of the largest and most heavily used public core repositories in the United States. The CRC encourages use of its facility by all interested parties.

Notice! We are fully booked for the entire month of November and have limited availability in December.
Please plan to make appointments for December and beyond well in advance.

To find downloadable files for a well listed as having photos or thin sections or analysis in the Text-Based Search Results...

Click on Library Number

As of October 10, 2017 all states and territories that are not compliant with the Real ID act will have a grace period until January 22, 2018. After that date, Driverís Licenses issued by non-compliant states might not be accepted at TSA checkpoints or for entry to Federal facilities including the Denver Federal Center - home of the CRC. The Real ID Act was passed by Congress in 2005, based on recommendations from the 9/11 Commission. The CRC is still waiting for more information on enforcement of the deadline as it applies to our facility. Enforcement could occur in 2018. Please check the DHS website for the latest information on the compliance status of your state. If your ID is issued by a non-compliant state, 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 Driverís Licenses can be found on this page from the Department of Homeland Security:
The CRC apologizes for any inconvenience to our visitors.