Catalog Archive
Auction 138, Lot 311

"Geological Map of Keweenaw Point, Lake Superior", Jackson, Charles T.

Subject: Lake Superior, Michigan

Period: 1847 (dated)

Publication:

Color: Hand Color

Size:
22.3 x 13.5 inches
56.6 x 34.3 cm
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This is a very detailed geological map that covers the region from Portage Lake to the tip of the point and also shows Manitou Island. A color-coded key locates geological units including sandstone, conglomerate, trap and jasper. The legend locates minerals, active and abandoned mines, and furnaces. A scale below title converts chains to miles. Fancy title lettering.

References: Karpinski (MI) #758b; cf. Marcou & Marcou #362

Condition: B+

There is some light toning along the folds and a few small spots in the image, else very good. Issued folding.

Estimate: $140 - $170

Sold for: $90

Closed on 12/7/2011

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