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- All Subjects: Hotel El Tovar
- All Subjects: Geology
- All Subjects: Ryder Ridgway Photographs
- Creators: Fred Harvey
- Creators: Dickinson, William R.
Color postcard titled, "8797 El Tovar Grand Canyon of Arizona." Handwritten annotation, "Dear Miss Oakley, I expect to leave here Tuesday A.M. Have had the time of my life. Lovingly, M."
Color postcard titled, "East From (Hopi) Rowe Point."
Color postcard titled, "H-4452 The Watchtower at Desert View, Grand Canyon National Park, Arizona." Circa 1930-1939.
A brief reconnaissance (5-8 November 2008) of the Big Sandy Formation near Wikieup (on US Highway 93 in Mohave County, Arizona) was undertaken to reconcile a reported dominance of lacustrine beds (Sheppard and Gude, 1972, 1973) with the largely terrestrial mammalian fauna reported from the formation (MacFadden et al., 1979; Lindsay and Mead, 2005). The issue is resolved satisfactorily by appreciation that nearly all fossil localities occur in fluvial beds that intertongue with and grade laterally into the dominant lacustrine strata.