This is a beautiful 1852 geological map of the Des Moines river in Iowa by D. D. Owen. It covers the flow of the Des Moines River, a tributary of the Mississippi, between the Raccoon and Lizard Forks (roughly from Des Moines city to Fort Dodge) and notes the rock and soil composition throughout. A beautifully rendered cross section is included in the lower half of the map with geologic cross-sections depicted in color. A table of references is included in the lower right quadrant. This map was published by Lippincott, Grambo and Company to accompany the 1852 Report of a Geological Survey of Wisconsin, Iowa and Minnesota; and incidentally of a Portion of Nebraska Territory.
Source
Lippincott, Grambo and Co., Report of a Geological Survey of Wisconsin, Iowa and Minnesota; and incidentally of a Portion of Nebraska Territory, (Philadelphia) 1852.
Very good. Minor wear and toning along original fold lines. Minor spotting.
Rumsey 690.044.