Driftless Area(redirected from Driftless zone)
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Related to Driftless zone: Driftless Region
An eroded, unglaciated region of the northern Midwest including most of western Wisconsin and parts of Illinois, Iowa, and Minnesota.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.