Gogebic

Gogebic (gōgēˈbĭk) [key], east-west mountain range, 80 mi (129 km) long and .5 to 1 mi (.8–1.6 km) wide, extending from the W Upper Peninsula, N Mich., into N Wis. It is known for its iron deposits, discovered in 1848. High-grade iron-oxide deposits have been depleted. New techniques make it possible to mine the reserves of a low-grade iron ore along with jasper.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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