1. Ancient landscapes of western North America : a geologic history with paleogeographic maps /: a geologic history with paleogeographic maps. (2018) Authors: Blakey, Ronald C, 1945-; Ranney, Wayne Record Type: Book Extent: 1 online resource (xi, 228 pages), color illustrations, color maps View Content: Available online (eLD content is only available in our Reading Rooms) ↗