Effect of geology on soil mass movement activity in the Pacific Northwest

Swanston, Douglas N. 1980. Effect of geology on soil mass movement activity in the Pacific Northwest. In: Youngberg, Chester T., ed. Forest soils and land use: Proceedings of the 5th North American forest soils conference; 1978 August 6-9; Fort Collins, CO. Fort Collins, CO: Department of Forest and Wood Sciences, Colorado State University: 89-115.