GEOLOGICAL SURVEY OF THE TERRITORIES. 

 Catalogue of rocks collected, <Jc. — Continued. 



185 

 / 



Name. 



Locality. 



Pebbly limestone, (Silurian) 



MicHOJOus gneiss 



Cbloiite-scbist 



Gray gneiss 



Mica-scbist 



Limestone, (Quebec) 



Quart/.ito 



(jlauconitic quartzite 



Red calcaroous sandstone 



Cblorite-scbist 



Talcose-scbist 



Quartz-schist 



White quartz 



Mica-scbist 



Gneiss 



MicaceDus gneiss 



Trachyte 



Slaty tracliyto 



Pur j)lisb trachyte 



Gneiss 



Red quartzite 



Magnesian limestone, (Carboniferous) 



Blue limestone, (Carboniferous) 



Calcareous sandstone 



Garnetil'erous gneiss 



Quartz 



Fine-grained gneiss 



Gray gneiss 



Slaty gneiss , 



Micaceous gneiss 



Sandstone 



Flint 



Basalt, (black) 



Basalt, (red) 



Gabbro , 



Diorite 



Brown sandstone, (Cretaceous) 



Gray sandstone, ((jretaceous) 



Blue limestone, ((iarbonifeious) 



Crystalline limestone, (Carboniferous) ... 



Oolitic limestone, (Carboniferous) 



Brown fossiliferous limestone, (Jurassic) 

 Volcanic conglomerate 



iletaraorishosed sandstone, (Tertiary) 

 Amygdaloid 



Cblorite-schist 



Gneiss 



Dolerite 



Basalt 



Basall-tuff 



Porpliyiitic basalt 



Quartzite, with pyrites 



Volcanic tufa 



Quartz 



Itacolumite, (common) 



Gneiss 



C hloritic schist 



Brown sandstone, (Tertiary) 



Blue slaty limestone, (Carboniferous) ... 



Slaty limestone, (Silurian) 



Pebbly limestone, (Silurian) 



Coarse fossiliferous limestone, (Silurian) 



Micaceous sandstone 



Chlorite-rock 



Basalt 



Brown-clay slate, (Silurian) .. 



Sandstone 



Blue art;illaceous slate 



Trai), (from dike in Jurassic). 



Trap, (from dike in Carboniferous) . 

 Pebbly limestone, (Silurian) 



318 

 319 I 



Glaucouitic limestone, (Silurian). 

 Hard-brown sandstone, (Silurian) 



East side of Madison River, near 

 Middle Cafion. 



Do. 



Do. 



Do. 



Do. 

 East side Middle Canon of Madison. 



Do. 



Do. 



Do. 



Do. 

 Near Red Eock Lake, Montana. 



Do. 

 "Wedge Peak, east side Madison 

 River. 



Do. 



Do. 



Do. 

 Valley of Madison River. 



Do! 

 Madison Kange. 



Do. 

 Bear Creek, Madison Range. 



Do. 



Do. 

 West side Lower Caiion of Madison 

 River. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Jackass Creek, Montana. 

 Pole Creek, Montana. 

 Mount Blackmore, Montana. 



Do. 

 West Gallatin Canon, Montana. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Divide between West Gallatin and 

 Yellowstone River. 



Do. 

 Valley of Yellowstone, above Bote- 



ler's. 

 Emigrant Gulcb, Montana. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Near Boteler's, Yellowstone Valley. 

 Mt. Cowan, Yellowstone Valley. 



Do. 



Do. 



Do. 

 Divide Creek, Montana. 

 Flathead Pass, ilontana^ 



Do. 



Do. 



Do. 



Do. 

 Near Horseshoe Bend, Missouri 

 River, Montana. 



Do. 



Do. 



Do. 



Do. 

 Missouri River, below Gallatin 

 City, Montana. 



Do. 

 Near Gallatin River, above Gallatin 

 City, Montana. 



iDo. 



Do. 



