Newberry Butte is named for John Strong Newberry (1822–1892), the geologist for an 1858 expedition headed by Lieutenant Joseph Christmas Ives which explored the Colorado River up to the lower Grand Canyon.[5] After returning, Newberry convinced fellow geologist John Wesley Powell that a boat run through the Grand Canyon to complete the survey would be worth the risk. Powell would later lead the Powell Geographic Expedition of 1869 to explore the region. This geographical feature's name was officially adopted in 1906 by the U.S. Board on Geographic Names.[2]
^Aaron Tomasi, Pernell Tomasi, Grand Canyon Summits Select An Obscure Compilation of Sixty-nine Remote Ascent Routes in the Grand Canyon National Park Backcountry, 2001, ISBN978-0971088009, p. 68.
^Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11. ISSN1027-5606.
^N.H. Darton, Story of the Grand Canyon of Arizona, 1917, p. 80.
^N.H. Darton, Story of the Grand Canyon of Arizona, 1917, pp. 14, 42, 59.