Geological Characteristics

Narrative of an Expedition to the Source of St. Peter's River, Lake Winnepeek, Lake of the Woods, and c. performed in the year 1823

Keating, William H
First published in 1824, these two volumes report observations from the 1823 mapping expedition lead by Stephen Long, which included travel along the Minnesota River. Given Keating's official capacity on the trip as geologist, it is not surprising that his account includes great detail about geological characteristics.
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