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plate 1. Landslide inventory map of the northwest quarter of the Sherwood quadrangle, Washington, Clackamas, and Yamhill counties, Oregon -- plate 2. Landslide inventory map of the northeast quarter of the...
plate 1. Landslide inventory map of the northwest quarter of the Canby quadrangle, Clackamas and Washington Counties, Oregon -- plate 2. Landslide inventory map of the northeast quarter of the Canby quadrangle,...
plate 1. Landslide inventory map of the northwest quarter of the Lake Oswego quadrangle, Multnomah and Washington Counties, Oregon -- plate 2. Landslide inventory map of the northeast quarter of the Lake Oswego...