19 maps on 3 sheets : some color ; 28 x 55 cm. or smaller, sheets 94 x 116 cm. or smaller, each sheet folded to 30 x 19 cm. or smaller, in envelope 31 x 24 cm
OCLC
ocm15078344
Cartographic Data
Scales differ
Title from envelope.
At head of title: Department of the Interior, United States Geological Survey ; University Extension--The University of Wisconsin Geological and Natural History Survey.
Includes text and ill. (some col.).
Components: Sheet 1. Introduction ; Physical setting ; Water system ; Water use -- Sheet 2. Ground-water--surface-water relationships ; Ground water ; Irrigation -- Sheet 3. Surface water ; Summary.