Relief shown by contours. Includes location map. Title from envelope. "With a descriptive text by J.E. Mathews and E.M. Wilde." Text includes references: pages 7-8.
Series:
Geologic map series ; no. 50A
OCLC:
(OCoLC)21140474
Locations:
OVUX522 -- University of Iowa Libraries (Iowa City)
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.