A great book to read. Carving Grand Canyon; Evidence, Theories, and Mystery by Wayne Ranney Paper to read. A proposed Laramide proto-Grand Canyon C.A. Hill, W.D. Ranney Paleogeography map used with permission ©2023 Colorado Plateau Geosystems Inc.
45:53
37:56
52:53
53:30
56:47
48:25
89:49
169:04
39:16
27:01
43:36
20:26
34:38
42:42
29:13
42:58
111:54
69:50
55:01
39:12