INDEX 
Page. 
Abstract of the Monograph 1 
Age of the Grand CaQon 187, 191, 226 
Echo Cliff monocline 205 
Hurricane fault 116,226 
Uinkaret lavas 110, 116 
East Kaihah monocline 191, 199 
Xoroweap fault 93 
Alcoves 169 
Alluvium, cafions refilled with 228 
Altitude of Eocene strata 71 
Grand Cafion district 19 
Kaibab Plateau 186 
Marlidgunt 26 
Stewart’s Canon 130 
terraces 47 
Ycrmilion Cliffs 40, 54 
walls of Cafion Toroweap 87 
Ami)hitheater Bright Angel 172 
Hindoo 169 
Ottoman 175 
Shinumo 167 
Ta-peats 158 
Upper Paria 16 
Amphitheaters of the Kaibab Chap. IX 
Ancient valley on the Kaibab 192 
Aquarius Plateau, post-Cretaceous unconformity. ... 215 
Archsean rocks of Arizona 18, 66 
Kaibab division 146, 179 
in the river bed 207, 242 
Arid climate drying up rivers 25, 99, 227 
effects of, upon topography 227, 245, 246 
of the Pliocene 119, 190, 223 
and weathering of basalt 112 
Arizona, topography of 11, 66 
Atmosphere of Grand Canon 152 
Attenuation of strata eastward 47, 66, 67 
Aubrey Cliffs 18, 66 
limestones 88, 254 
group 88, 89 
Axes of displacement 216 
Basalt, Central Arizona 66 
Grand Canon 95, 180 
recent 108,111 
of the Sheavwits 107, 223 
Hintaret 12, 82, 94, 104, 223 
Basaltic Plateaus 106 
Base level of erosion 76, 119, 121, 224 
Big Spring, Stewart’s CaQon 129, 139 
Page. 
Bitter Creek beds 16 
Bowlders from side gorges 241 
Brackish-water beds. Eocene 28 
Bright Angel Amphitheater 172, 174 
Buttes in Grand Canon 145, 147, 158, 172, 175 
Cactus 127 
Cambro-Silurian 207 
Canons, alluvinm in 228 
floods in 236 
general characters of 143 
of San. Juan Basin 222 
Cape Final 176 
Koyal 176 
Carbonaceous shales, Cretaceous 69,212 
Carboniferous age 208 
compared with Cretaceous 212 
strata of Central Arizona 6G 
Grand Canon Platform . 3, 17, 19, 81, 207 
limestones 209 
Marble Canon platform 203 
Toroweap 87 
Uinkaret 102, 118 
Cinder cones, Uinkaret 82, 104, 106, 109 
Grand Canon 94 
Clay and sand in river 237 
Clay-slates, absence of 210 
Cliffs, characteristic of formations 45 
Cretaceous 32 
of displacement (note) 130 
Eocene, or Pink 27 
Jurassic 35 
Permian 43, 80, 81 
Pink 27 
profiles of 227 
regulated by talus 251 
recession of 62, 200, 249 
Vermilion (Triassic) 40 
Climate of Miocene 189 
Pliocene 190,201,222 
Cloister-buttes 148, 167 
Cloud effects 54, 154 
Coal, Cretaceous 67, 212 
Colob Terrace 36,40 
Colorado Plateau 14,186 
Elver .90,98, 161,164 
declivity of 239 
origin of 7, 217 
turbidity of 238 
261 
