204 GEOLOGICAL SUEVEY OF THE TEEEITOEIES. 



Catalogue of rocks — Continued. 



No. 



249 

 250 

 251 

 253 

 253 

 254 

 255 

 256 

 257 

 258 

 259 

 260 

 261 

 262 

 263 

 264 

 265 

 266 

 267 

 268 

 269 

 270 

 271 

 272 

 273 

 274 

 975 

 276 

 277 

 278 

 279 

 280 



^Jfame. 



Locality. 



White sandstone, (Pliocene) 



Clay-slate, (siliceous) 



Coarse red sandstone 



Basalt 



Trachyte 



Trap-rock, with chalcedony 



Old hot-spring deposit 



White brecciated volcanic rock 



Eed brecciated volcanic rock 



Eornblendic gneiss 



Granite - 



Quartzite, (highly metamorphosed) 



Purplish trachyte 



Gray trachyte 



White sandstone - - 



Old hot-spring deposit 



Limestone 



Basalt -• 



Old hot-spring deposit,. (yeUow) 



Old hot-spring deposit, (white) 



Old hot-spring deposit, (red) 



Limestone 



Basalt 



White quartzite 



Ked quartzite 



Greenish quartzite 



Limestone 



Yellowish sandstone '. 



Gray sandstone 



Yellow sandstone 



Ked sandstone 



White sandstone 



Sandstone 



Beaver Head Cauon, Montana Territory. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Horse Plain Creek, Montana Territory. 



Do. 

 Main Divide of Eocky Mountains. 

 Medicine Lodge Creek, Idaho Territory. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Soda Snrings, Bear Eiver, Utah Territory. 



Do. 



Do. 



Do. 



Do. 

 Back of Bennington, Utah Territory. 



Do. 

 Swan Creek, Utah Territory. 

 Near Evanston, Utah Territory. 



Do. 



Do. 

 Between Evanston and Fort Bridger, 



Do. 



Do. 

 Eort Bridger. 



