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  • MUSEUM QUALITY INKS AND PAPER: Printed on thick 192gsm heavyweight matte paper with archival giclee inks, this historic fine art will decorate your wall for years to come.
  • VINTAGE MAP REPRODUCTION: Add style to any room's decor with this beautiful print. Whether your interior design is modern or classic, a map is never out of fashion.
  • ATTENTION TO DETAIL: We edit every antique map for image quality, color and vibrance, so it can look its best while retaining historical character. Makes a great gift!
  • FRAME READY: Your unframed poster will arrive crease-free, rolled in a sturdy mailing tube. Many maps fit easy-to-find standard size frames 16x20, 16x24, 18x24, 24x30, 24x36, saving on custom framing.
  • Watermarks will not appear in the printed picture. Some blemishes, tears, or stamps may be removed from the final print.

This is a beautiful large geological map of Wisconsin, Iowa and Minnesota by the United States Geological Corps. It covers from the Missouri River east as far as Lake Michigan and from Osage River north to the Lake of the Woods. The map exhibits the extension of the Iowa coal-field into Missouri, and its relation to the Illinois coal-field. Part of Lake Superior is included. An inset map in the top right quadrant features the geological map of the north shore of Lake Superior

The map shows the distribution of the different types of rocks and geological formations along the river and its vicinity. A table of colors is included in the lower left quadrant of the map indicating the superficial sedimentary deposits and the fossiliferous strata from the Drift Period to the Lower Silarium Period.

This map was constructed for observations by the United States Geological Corps, under instructions from the Secretary of the Treasury by David Dale Owen, M.D., principal geologist. Assistant geologist J.G. Norwood, M.D supervised middle, northern and northeastern Minnesota while Col. Chas. Whittlesey supervising the greater part of the southern shore of Lake Superior in Wisconsin.

item#: 5253885_2414__M03

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