Hydrologic data for the Big Spring Basin, Clayton County, Iowa, water year 1991
By: Stephen J. Kalkhoff and Ronald L. Kuzniar ; prepared in cooperation with the Iowa Department of Natural Resources (Geological Survey Bureau).
Contributors: Kuzniar, Ronald L.; Geological Survey (U.S.); Iowa. Dept. of Natural Resources. Geological Survey Bureau.
Series: U.S. Geological Survey open-file report -- 94-56.
Publisher: U.S. Geological Survey; USGS Earth Science Information Center, Open-File Reports Section [distributor]
Published: 1994
Place of publication: Iowa City, Iowa; Denver, Colo
Language: eng
Number of pages: 87
Subjects: Hydrology -- Iowa -- Clayton County; Stream measurements -- Iowa -- Clayton County; Agricultural chemicals -- Environmental aspects -- Iowa -- Clayton County; Clayton County (Iowa)
Notes: Chiefly tables.

Includes bibliographical references (p. 25).