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Click on a state on the map to view a catalog of wells in that state.

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Search the Cores Database

State Township
Range Section
Formation
(Use the two letter abbreviation for the state. See map for examples.)
(Township and Range may be specified as a range of values, for example, 5N-10N or 3E-12E)
(Enter full formation name or the first few letters of the name which will retrieve all formations that start with those letters.)

Search the Cuttings Database

State Township
Range Section
(Use the two letter abbreviation for the state. See map for examples.)
(Township and Range may be specified as a range of values, for example, 5N-10N or 3E-12E)

Core and Cuttings Database
For help on searching the database or working with the well lists please visit the Search Tips page.

Inquiries
To inquire about computer printouts, nature of the database, etc., please contact Jeannine Honey at 303-202-4851 or jhoney@usgs.gov.