1. Cataclysms on the Columbia : a layman's guide to the features produced by the catastrophic Bretz floods in the Pacific Northwest Author/Creator: Allen, John Eliot, 1908-1996 Publication/Creation: Portland, Or. : Timber Press, 1991 Resource Type: Book Access & Availability: Loading
2. The magnificent gateway : a layman's guide to the geology of the Columbia River Gorge Author/Creator: Allen, John Eliot, 1908-1996 Publication/Creation: Forest Grove, Or. : Timber Press, 1979 Resource Type: Book Access & Availability: Loading