The product is a lot of three geological fault zone books/surveys from the 1970s in Illinois. The books are softcover and come with maps, making them a valuable resource for anyone interested in the geology of the region. Authored by various authors and published by the State of Illinois, these original books offer insights into the science behind the geological fault zones in North America, specifically in Illinois. A must-have for collectors of geology-related literature, these books provide a comprehensive look at the geological history and formations in the area.
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