Catalog Archive
Auction 138, Lot 309

"Geological Map of the District between Keweenaw Bay and Chocolate River, Lake Superior, Michigan", Foster/Whitney

Subject: Lake Superior, Michigan

Period: 1849 (circa)

Publication:

Color: Hand Color

Size:
24 x 19.5 inches
61 x 49.5 cm
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This detailed geological map covers the region from the Keweenaw Bay to the Chocolate River. A color-coded key locates seven geological units, including sandstone, quartz, limestone, schistose and trappean rocks, granite and basalt. There is also good detail of relief shown in hachure. A scale below title converts chains to miles. Fancy title lettering.

References: Karpinski (MI) #787; Marcou & Marcou #369

Condition: B

There is some light offsetting in the image and it is trimmed close to the neatline at top and bottom. Issued folding.

Estimate: $200 - $250

Sold for: $150

Closed on 12/7/2011

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