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WGNHS has approximately 240 cores donated to us by the Wisconsin Department of Transportation. The cores are from shallow holes drilled in the course of construction projects, mostly for bridges, culverts, and retaining walls. Photographs of the core are available through the WGNHS Data Viewer, and logs for approximately 70 of the cores are available on request.
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Set of scanned documents of progress files on unpublished geologic mapping projects.


    map background search result map search result map Maine Geological Survey Progress Files Maine Geological Survey Field Photos Collection Arizona Geological Survey Digital Geologic Maps 2018-2021 Maine Geological Survey Progress Files Maine Geological Survey Field Photos Collection Arizona Geological Survey Digital Geologic Maps 2018-2021