CANYONS 451 



1344. Upper falls and canyon of the Yellowstone, Yellowstone park. 

 1345, 1350. Grand canyon of the Yellowstone. 

 1348. Yellowstone canyon and falls. 

 1350. Yellowstone canyon. 



Castellated Erosion Forms 



152. Shinimo altar, Grand canyon of the Colorado. 



153. Canyon de Chelly, Arizona. 



155. Navajo church near Fort Wingate, New Mexico. 



159. The Sentinel, Yosemite valley, California. 



217. Towers of calcareous tufa formed by sublacnstral springs, shore of Mono 



lake, California. 

 406, 407. Triassic sandstone, Garden of the Gods, Colorado. 

 408. Cathedral spires, Garden of the Gods, Colorado. 

 445-449. Effects of rain erosion on horizontally bedded andesite conglomerate, 



headwaters of Rio Grande river, Colorado. 

 677, 678. Eroded, cross-bedded Cretaceous sandstone, north of north fork of Sun 



river, Teton county, Montana. 

 681. Scotts bluff, Nebraska. 



697. Jail and court-house, Cheyenne county, Nebraska. 



698. The jail, looking east, Cheyenne county, Nebraska. 



699. " Chimney rock," Cheyenne county, Nebraska. 

 701, 702. "Smokestack," Banner county, Nebraska. 

 703. •"Twin Sisters," Banner county, Nebraska. 



1068. Protoceras sandstones on Oreodon clays, head of Indian draw, Big Bad lands, 



South Dakota. 



1069. Protoceras sandstone area, head of Cottonwood draw, Big Bad lands, South 



Dakota. 



1071. Spur of south end of Sheep mountain, Big Bad lands, South Dakota. 



1072, 1073. South end of Sheep mountain and Devils tower, Big Bad lands, South 



Dakota. 

 1074. Protoceras sandstone on Oreodon beds near Wounded Knee creek, South 



Dakota. 

 1090,1092. Columns capped by sandstone, White River formation, east side of 



Cedar daw, Big Bad lands, South Dakota. 

 1097, 1098, 1107, 1108. Granite needles near Harney peak, Black hills, South 



Dakota. 

 1075-1081. Protoceras sandstone area, Big Bad lands, South Dakota. 



1086. Sandstone lenses near Flour trail, Big Bad lands, South Dakota. 



1087. Columns of clay capped by sandstone near Flour trail, Big Bad lands, 



South Dakota. 



1088. South fork of Corral draw, Big Bad lands, South Dakota. 

 1122. Needle point, Elk canyon, Black hills, South Dakota. 



1246. The Needles from Poodledog pass, Monte Cristo, Washington. 



1270. Eroded granite near Bald mountain, Big Horn mountains, Wyoming. 



1271-1274. Devils tower, Wyoming. 



1304, 1305. Hoodoo basin, Yellowstone park, Wyoming. 



