Geology topics

John R. Erickson

Publications and source records attributed to John R. Erickson.

2 recordsLinked to original sources

USGS1978

Water-table map of Milwaukee County, Wisconsin

A map (scale 1:100,000) of the water table in Milwaukee County in southeastern Wisconsin was prepared using water levels from more than 135 wells. The work was done as a cooperative project between the U.S. Geological Survey and the Southeastern Wisconsin Regional Planning Commission. The map shows the altitude of the water table in increments of 20 feet. The altitude ranges from less than 540 feet in a cone of depression in the city of Milwaukee to more than 800 feet in an area along the western border of the county. (Woodard-USGS)

Wisconsin↗

USGS1978

Water-table map of Walworth County, Wisconsin

A map of the water table in Walworth County in southeastern Wisconsin was prepared using water levels from nearly 600 wells. The work was done as a cooperative project between the U.S. Geological Survey, the University of Wisconsin-Extension, Geological and Natural History Survey, and the Southeastern Wisconsin Regional Planning Commission. The map (scale 1:100 ,000) shows the altitude of the water table in increments of 20 feet, with supplemental 10-foot contours. The altitude ranges from less than 780 feet along parts of the eastern border of the county to more than 1,000 feet in a small area near the central part of the county. (Woodard-USGS)

Wisconsin↗