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All News and Pages Related to "Des Moines"

Erratics: Glacial Boulders in Iowa

Posted on August 13th, 2014

by Raymond R. Anderson and Jean Cutler Prior “Peculiar,” “irregular,” and “uncommon,” are words used to describe one class of Iowa rocks — glacial boulders or “erratics.” Geologists define erratics as stones or boulders that have been carried from their place of origin by a glacier and then left stranded by melting ice on bedrock […]

History: 1892–1947

Posted on May 13th, 2014

A permanent geological survey, as a separate agency of state government, was established in 1892. In accordance with legislative provisions, a Geological Board was also established to govern the broad administrative policies of the survey and to appoint the state geologist. (This board was dissolved in December 1980, and the state geologist is now appointed […]