XXll 
Illustrations 
PAGE 
Profile of the Colorado through the Grand Canyon . 57 
From Powell’s Report. 
Looking across the Grand Canyon (Inner Gorge) near 
Foot of Toroweap.• 58 
Depth 3000 feet. 
Photograph by J. K. Hillers, U. S. Geol, Survey. 
Pinnacles in Split-Mountain Canyon .... 61 
Photograph by E. O. Beaman, U. S. Colo. Riv. Exp. 
Head of the Canyon of Lodore just inside the “Gate” 62 
Walls 2500 feet high ; river 300 feet wide. 
Photograph by E. O. Beaman, U. S. Colo. River Exp. 
Pot-hole in Intermittent Water Course, Glen Canyon 63 
Homogeneous sandstone. These holes are often 10 to 15 feet deep, 
with the stones which ground them lying in the bottom. 
Photograph by J. Fennemore, U. S. Colo. Riv. Exp. 
Looking up Green River Valley from below Union 
Pacific Railway Bridge ...... 64 
Photograph by C. R. Savage. 
Specimen of a Navajo.65 
Photograph by J. K. Hillers, U. S. Geol. Survey. 
Young Warriors of the North.66 
Photograph by C. R Savage. 
The Joshua Tree.67 
Clistoyucca Arborescens. Southern Nevada. 
Photograph by C. R. Savage. 
A Pai Ute Family at Home ...... 68 
Photograph by J. K. Hillers, U. S. Colo. Riv. Exp. 
The Barrel Cactus ........ 69 
Pencil Sketch by F. S. Dellenbaugh. 
Vegetation of the Southwest ...... 70 
Photograph by E. O. Beaman. 
A Kaibab Pai Ute.. . 72 
Posed by Thomas Moran. 
Photograph by J. K. Hillers, U. S. Geol. Survey. 
Side Canyon of Glen Canyon ...... 73 
Homogeneous sandstone. 
Photograph by J. Fennemore, U. S. Colo. Riv. Exp. 
