US (USGS) National Cooperative Geologic Mapping Program

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The National Cooperative Geologic Mapping Program (NCGMP) is the primary source of funds for geologic map production in the U.S. NCGMP funds geologic mapping projects through its FEDMAP, STATEMAP, and EDMAP components and the Great Lakes Geologic Mapping Coalition (GLGMC). The NCGMP also maintains the National Geologic Map Database (NGMDB) which serves as the National Archive for geologic maps.
https://www.usgs.gov/programs/national-cooperative-geologic-mapping-program

https://ngmdb.usgs.gov/ngmdb/ngmdb_home.html

https://ngmdb.usgs.gov/nationalgeology/

It seems spares or incomplete in some areas.
 
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It is interesting that a "US national geological jigsaw puzzle" is being assembled cooperatively in several layers. As the spoil-sport that I am, in all honesty, I should inform you that there is a piece missing from the box, and that I have it hidden here on the other side of the Pacific, in Tasmania.