Summary of the geological and natural history studies carried out in Minnesota between 1872 and 1901. Published in 6 volumes. Vol 1 provides a history of geological study in Minnesota up to the time of this work and summarizes geologic and natural history information by county between 1872-1882.
Winchell, N.H.; Upham, Warren.
The Geology of Minnesota, Vol. 1 of the Final Report.
Minnesota Geological Survey.
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