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There’s something new
UNDER THE BIG SKY

ROADSIDE GEOLOGY OF MONTANA

The long wait is over, and the new book is fabulous. It’s
been 34 years since the previous edition of Roadside
Geology of Montana was released, and a lot has changed
in geologic thinking since then. This new, color edition
with updated maps, figures, and text includes many

places not covered in the first book. Nowhere but in the

Big Sky State will you uncover such amazingly diverse
geology with well-exposed rocks and dramatic stories.
Make your next road trip to Montana one that you’ll
never forget!
480 pages, 6x9, color, $30.00 paper
Item #208, ISBN 978-0-87842-696-6

E-BOOK DOWNLOADS
•
each E
• R
AT T H E G S A S T O

This monumental project, describing and illustrating the geology
and geophysics of North America, was created to help celebrate
GSA’s 100th anniversary. The collection of discipline- and region-
GSA’s 100th anniversary. The collection of discipline- and region-

speci c books that once lled a oor-to-ceiling bookcase
c books that once lled a oor-to-ceiling bookcase

speci
can now be read on your tablet or computer.
Volumes include:
• Centennial Field Guides

• Continent-Scale Map Series

• Continent-Ocean Transects
• Geology of North America Series
Start exploring at rock.geosociety.org/store/.

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