num_pages: 221
description: The formation of the Grand Coulee remained a mystery for many years, until J Harlen Bretz proved that the Columbia River basin was the site of huge floods 15,000 years ago that created the landscape we see today.
language: English
title: Cataclysms on the Columbia: A Layman's Guide to the Features Produced by the Catastrophic Bretz Floods in the Pacific Northwest
titlecomplete: Cataclysms on the Columbia: A Layman's Guide to the Features Produced by the Catastrophic Bretz Floods in the Pacific Northwest (Scenic Trips to the)
genres: Geology, Nonfiction, Science, History
ratings_count: 119
publisher: Timber Pr