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USGS · fs20193060

U.S. Geological Survey STATEMAP Program—Geologic mapping for the public good

Abstract

As of 2020, STATEMAP has invested more than $150 million in 48 State geological surveys, matched dollar for dollar, to complete geologic mapping projects crucial to the health and security of State natural resources and residents. For more information about STATEMAP and other geologic mapping efforts supported by the National Cooperative Geologic Mapping Program, visit https://ncgmp.usgs.gov .

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Abby Ackerman, Darcy McPhee. 2020-07-21. U.S. Geological Survey STATEMAP Program—Geologic mapping for the public good. https://doi.org/10.3133/fs20193060

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Divisions of geologic time—Major chronostratigraphic and geochronologic units

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