Relief shown by contours. Title from PDF title screen (viewed on Apr. 30, 2008). Includes text, index map, and ancillary map. Includes bibliographical references.
Series:
Quaternary geologic atlas of the United States Miscellaneous investigations series ; map I-1420 (NL-18)
OCLC:
(OCoLC)226399460
Locations:
USUX851 -- Iowa State University - Parks Library (Ames)
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.