Upper Mississippi Valley
Subtitle: Iowa City, Iowa to Duluth, Minnesota, August 25th to September 1st, 1935
By: The Kansas Geological Society in cooperation with the Iowa Geological Survey, State Geological Survey of Illinois, Wisconsin Geological and Natural History Survey, Minnesota Geological Survey
Contributors: Iowa Geological Survey; Illinois State Geological Survey; Wisconsin Geological and Natural History Survey; Minnesota Geological Survey
Series: Its Guide book ... ninth annual field conference
Published: 1935
Place of publication: Wichita]
Language: eng
Number of pages: 471
Subjects: Stratigraphic Geology