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280 pages • first pub 1978 (editions)
ISBN/UID: 9780878420636
Format: Paperback
Language: English
Publisher: Mountain Press Publishing Company
Publication date: 01 June 1978
Description
Until about 200 million years ago, the western margin of North America lay to the east, along the present Idaho border, and a broad coastal plain spread westward into Oregon. The rest of the state was ocean floor. Then the continent began moving s...
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280 pages • first pub 1978 (editions)
ISBN/UID: 9780878420636
Format: Paperback
Language: English
Publisher: Mountain Press Publishing Company
Publication date: 01 June 1978
Description
Until about 200 million years ago, the western margin of North America lay to the east, along the present Idaho border, and a broad coastal plain spread westward into Oregon. The rest of the state was ocean floor. Then the continent began moving s...