Guidebook to the Geology of Lake Superior's Apostle Islands National Lakeshore

The Apostle Islands consist of three sandstone formations over a billion years old, glacial deposits less than twelve thousand years old, and a rich variety of modern coastal erosional and depositional features.

This 2004 Eastern National reprint includes descriptions of the nature and origin of the area's bedrock and the unique processes that have formed the islands. Island-by-island descriptions of geologic features make this publication especially useful as a guidebook, and geologic terms are defined for the general public. The guide also includes island-inspired poetry by Mary P. Dalles. Softcover; 144 pages. Printed in the USA.