Soil survey of Clayton County, Iowa
By: by T.H. Benton and A.L. Gray.
Contributors: Gray, A. L. b. 1898.; United States. Bureau of Chemistry and Soils.; Iowa Agricultural Experiment Station.
Series: United States. Dept. of Agriculture. Bureau of Chemistry and Soils. [Soil survey report] Series 1925 -- no. 20.
Publisher: Government Printing Office
Published: 1930
Place of publication: Washington, D.C
Language: eng
Number of pages: 31
Subjects: Soils -- Iowa -- Clayton County -- Maps.; Soil surveys -- Iowa -- Clayton County.
Genres: Maps.
Notes: In cooperation with the Iowa Agricultural Experiment Station.