Alpena (ălpēˈnə) [key], city (1990 pop. 11,354), seat of Alpena
co., N Mich., on Thunder Bay, an arm of Lake Huron; inc. 1871.
Limestone quarried nearby is used to make cement, Alpena's chief
manufacture. Cement and limestone are transported on the Great
Lakes by way of Alpena's harbor. The city lies in a year-round
resort area and has an annual winter carnival. The Columbia
Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia
University Press. All rights reserved. More on Alpena from Fact
Monster: See more Encyclopedia articles on: U.S. Political
Geography