insider.si.edu

Report on the geological survey of the state of Wisconsin. Volume 1 / James Hall, on general geology and palæontology, and J.D. Whitney, on the upper Mississippi lead region

Preface signed: James Hall, Albany, December, 1861. "Catalogue of palæozoic fossils, from the rocks of the state of Wisconsin"--Page [428]-442. SCNHRB copy (39088002695682) stamped on title page: ...
insider.si.edu

Annual report on the geological survey of the state of Wisconsin

1878-79 have at head of title: Public document. no.15. Description based on reports dated 1855 and 1856. siris_sil_265369 ...
BGR

Use This Free Geological Map To See The Rocks Beneath Your Feet Anywhere In The US

In what the agency hopes will spur a major leap in American geoscience, the U.S. Geological Survey has released a new mapping tool that allows anyone to peer into the earth beneath their feet. Dubbed ...
Forbes

New Map Shows U.S. Geology In Unprecedented Detail

The Cooperative National Geologic Map offers a complete and detailed look at the bedrock and fault systems of the continental United States. The first geological map of the United States was published ...