Geology of the Dubuque South Quadrangle Iowa-Illinois
By: by C. Ervin Brown and Jesse W. Whitlow.
Contributors: Whitlow, Jesse W.; Geological Survey (U.S.)
Series: Geology of parts of the Upper Mississippi Valley zinc-lead district; U.S. Geological Survey bulletin -- 1123-A
Publisher: U.S. Government Printing Office
Published: 1960
Place of publication: Washington, DC
Language: eng
Number of pages: 93
First sentence: Abstract
The Dubuque South quadrangle in the southwester part of the Wisconsin-Illinois-Iowa zinc-lead district is an area of 52 square miles in Iowa and 3 square miles in Illinois.  The Mississippi River flows through the area and Silurian rocks form a prominent cuesta in the southern part of the quadrangle.  The topography generally is in the early maturity stage of erosion and maximum relief is about 590 feet.
Notes: "Prepared in cooperation with the Iowa Geological Survey".

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Table of contents: pagenum: 1
class: part
title: Abstract