186 



GEOLOGICAL SURVEY OF THE TERRITOKIES. 

 Catalogue of rocks collected, <!j-c. — Coutinued. 



320 



321 

 322 

 323 

 324 

 325 

 326 

 327 

 328 

 329 

 330 

 331 

 332 



Blue slaty limestone, (Silurian) 



Green chloritic slates, (Silurian) 



Purple calcareous sandstone 



Glauconitic sandstone, (calcareous) 



Purplish sandstone 



Pink quartzite 



Steel-gray quartzite 



Ked sandstone ■ 



Micaceous sandstone, (fine-grained) 



Micaceous sandstone, (pebbly) 



Blue argillaceous slate, (calcareous) 



Brownish argillaceous slate, (calcareous) 

 Trap-rook, (dike in Jurassic) 



Near Gallatin River, above Gallatin 

 City, Montana, 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 



Bocks collected by the Snake Bivei' division of the expedition, Professor F. H. Bradley and 



W. B. Taggart. 



No. 



1 



2 



3-9 



10 



11 



12-14 



15-17 

 18 



19-20 



21-22 

 23 

 24 



25-26 

 27 

 28 

 29 

 30 

 31 

 32 



33-35 

 36 



37-38 

 .39 



40 



41-42 



43-44 

 45-46 



47-48 

 49 



50-51 



52-64 

 65 

 66 

 67 



68-69 

 70 



71-77 



78 

 79 

 80-81 

 82 

 83 



84 

 65 



Name. 



Locality. 



Hematite 



Oolitic limestone, (Tertiary) 



Fossiliferous limestone, (Quebec group).. 



Gray limestone, (Tertiary) 



Gray trachyte 



Cellular trachyte 



Basalt 



Rose-colored tracbytic tufa 



Basalt 



Tracbytic tufa 



Trachyte-porphyry 



Serpoutiuo 



Conglomerate-limestone, (Quebec group). 



Limestone, (Niagara group) 



Glauconitic sandstone 



Trap-rock 



Slaty trachyte '. 



Granular trachyte 



Tracbytic tufa 



Basalt 



Micaceous quartzite, (Potsdam) 



Sanidine trachyte 



Ilot-spring deposit, (calcareous) 



Volcanic sandstone 



Volcanic sandstone, compact, metamorphosed. 



Volcanic sandstone, conglomerate 



Brown porphyritic obsidian 



Volcanic sandstone 

 Sanidine trachyte . 



Trachyte 



Tulaceous geyserite 



TufaceoTis sandstone 



Compact geyserite 



Trachyte 



Trachyte-porphyry 



Compact sandstone, (Tertiary) . 

 Rhvolitic 



White volcanic sandstone. ... 

 r()ri)hYiitic obsidian, (black). 



Splicrulitic ob.sidiau 



llhyolilic 



Gray trachyte 



Brown trachyte. 

 Trachyte 



86 

 87 



Red trachyte 



Cellular trachyte 



Near Brigham City, V tab. 

 Bear River Bridge, Utah. 

 Malade City, Utah. 



Do. 

 Near Fort Hall, Idaho. 

 Rand Hill Mountain, Id^lio. 

 Fulls River, Idaho. 



Do. 

 Pierre's River, Idaho. 



Do. 



Do. 



Do. 

 Teton Caijou, Idaho. 

 Teton Creek, Idaho. 

 Teton Mountains, Idaho. , 



Do. 

 Bechler's River, Idaho. 



Do. 

 Crater near Henry's Lake, Idaho. 

 Sawtelle's Peak, Idaho. 

 Tyghee I'ass, Idaho. 

 Upper M.adison Caiion, Montana. 

 Gibbon's Fork of Madison River, 



Montana. 

 Lower geyser-basin, Yellowstone 



National Park. 

 Shoshone Lake, Yellowstone Sh- 

 tioual Park. 



Do. 

 Near Shoshone Lake, Yellowstone 

 National Park. 



Do. 

 Two miles south of Shoshone Lake, 



Yellowstone National Park. 

 Lewis's Lake, "Wyoming. 



Do. 



Do. 



Do. 

 Mt. Sheridan. 



Do. 

 Hunter's River, 'Wyoraing. 

 East side cation of Union River, 

 Wyoming. 



'Do. 



Do. 



Do. 



Do. 

 West side caiion of Union River, 

 Wyoming. 



'Do. 

 Ridge west of Coulter's Creek, 

 Wyoming. 



Do. 



Do. 



