A Geological Reconnaissance: Across the Bitterroot Range and Clearwater Mountains in Montana and Idaho (Classic Reprint) - Hardcover

Waldemar Lindgren

Hardcover

ISBN 10: 0666575746 ISBN 13: 9780666575746

Publisher: Forgotten Books, 2018

Synopsis

Geologic reconnaissance across the Bitterroot Range and Clearwater Mountains

Practical, field-based geology from a landmark USGS study that surveys western Montana and northern Idaho. This edition distills a rapid, on-the-ground look at rock types, structures, and early mining districts in a region with little prior published detail.

The report traces a belt from the Bitterroot Valley westward across high divides into the Clearwater system, documenting topography, lithology, and the scant sedimentary rocks found alongside dominantly granitic and gneissic formations. It also covers glaciation patterns, basaltic lava plateaus, and the interplay between geology and early exploration and settlement. Along with field notes, the work includes maps and discussions of mineral deposits and mining districts that shaped the area's economic history.
What you’ll experience

• Descriptions of gneiss, granite, and micaceous rocks, with notes on foliation, dikes, and irregular intrusions
• Overview of sedimentary inclusions, quaternary gravels, and evidence of past glaciation and lava plateau geology
• Maps, field observations, and early mining district illumination across the Bitterroot and Clearwater regions
• Context on the region’s exploration, settlement, and forest management as it relates to geology

Ideal for readers interested in field geology, historical geologic surveys, mining history, and the physical landscape of the Bitterroot and Clearwater mountains.

Edition details

• Publisher: Forgotten Books
• Publication date: 2018
• Language: English
• ISBN 10: 0666575746
• ISBN 13: 9780666575746
• Binding: Hardcover
• Number of pages: 162