DAVIS: THE GKAND CANYON OF THE COLOKADO. 117 



to the fault beneath the valley floor and to the great cliffs of the Shivwits 

 plateau bordering the valley on the east. 



Hurricane Ledge: "It is related that a storm overtook a party of 

 Mormon officials while attempting to explore a route for a wagon road 

 up a gulch which comes down from the upper country, and hence its 

 name " (Powell, a, p. 187). The same name is given to the fault which 

 determines the " ledge " or cliffs along the western border of the Uinkaret 

 plateau. 



Kaibab : " Mountain lying down " (Powell, a, p. 185). The highest 

 plateau bordering the Grand canyon. 



Kanab : " Willow " (Powell). Name of a tribe, a creek, a plateau, a 

 canyon through its middle, and a town on the ci'eek. 



Paria : " The Ute name for elk " (Button, a, p. 253). A Triassic 

 plateau east of the Kaibab, and a creek and canyon in it. 



Shindrump : " Capping the cliffs, we find conglomerate, over which 

 are scattered many fragments of silicified wood, known to the Indians 

 as the arrows of Shin-au'-av, or Shin-ar'-ump" (Powell, a, p. 190). 

 "The weapons of Shinav, the wolf-god " (Dutton, a, p. 147). A con- 

 glomeratic sandstone at the bottom of the Trias. 



Shi'-vwits: Shiv signifies spring ; Shivwits, the people of the springs 

 (Powell). This word is spelled Shiwits, Sheavwits, Scheavwits, in various 

 reports; the spelling here adopted being given by Powell (a, p. 128). 

 The westernmost of the blocked plateaus. 



Tonto : Spanish name of an Indian tribe, meaning " fool ; " given by 

 Gilbert to the basal sandstones of the Palaeozoic series. 



Toro'weap : " A clayey locality " (Dutton, a, p. 30). The valley be- 

 tween the Uinkaret and Kanab plateaus, probably so named from the 

 fine silt deposited on the valley floor back of Vulcan's throne. 



Uinka'ret: "Pine mountains" (Powell, p. 199). One of the blocked 

 plateaus, capped with many volcanic cones and flows. 



The chief features of the district are shown on eight sheets of the 

 topographical map published by the United States Geological Survey : 

 St. Thomas and Camp Mohave, Nev., Mt. Trumbull, Kaibab, Echo 

 cliffs, Diamond creek, Chino, San Francisco mountain, Ariz. 



Geological maps are given in Dutton's reports on the High plateaus 

 and on the Grand canyon. 



The drawings from which the illustrations of this article are repro- 

 duced can make no claim to accuracy of detail. They are made up 

 from hasty sketches in which but little more than an outline was re- 



