Carte - Roadside Geology of Minnesota, Paperback/Richard W. Ojakangas

Mountain Press Publishing Company

Carte - Roadside Geology of Minnesota, Paperback/Richard W. Ojakangas

Carti

Minnesota's lakes may be its most famous features, but the glaciated countryside disguises a much longer history of volcanoes and plate collisions--not surprising when you learn that Minnesota was at the active edge of the fledgling North American continent for several billion years.

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