GENERAL INDEX 



Note. — For alphabetical lists of minerals and rocks, (not repeated in the following,) see pp. 267, 270, 

 and 356 ; for list of elevations, pp. 657-659. 



A. 



Page. 



Actinolite 265,267 



Agate 267,269 



Alabandite 267 



Alluvial deposits 350 



Alps lode 287 



Amazon stone 268 



Americus mine 353 



Amethyst 267 



Ammonites 26 



Amphibole 267,268 



Analyses of western lignitic coals. 112, 114 



Anglesite 267 



Anhydrite 267 



Anna and Washington lode 305 



Anticlinal ridges 19, 79 



Aqueo-igueous fusion 142 



Arapahoe Peak 86, 87, 90, 150, 152, 159 



Archaean area 146 



rocks, 93, 96, 98, 138, 139, 146, 155, 

 156 



Argentine Pass 88 



Argentite 267 



Arizona, Northern 168 



Arkansas Canon 240 



maris 49,240 



Park 50 



Eiver 48,239,307 



sandstone 312, 326 



Valley 48, 50, 55, 239, 304 



Arsenopyrite 267 



Asphaltum spring 101 



Audubon, Mount 86 



Azurite 267 



B. 



Bad lands 17 



Badger Creek 308 



Baker mine 298,303 



Baker or Douglass coal-bed 122 



Barber opening 122 



Baret 267 



Basalt 76 



Basaltic lava 158 



Basanite 267,269 



Bates Hunter lode 284 



Bear Canon, 95, 97, 99, 100, 102, 128, 135, 136 

 Bear Creek, 89, 95, 100, 102, 147, 149, 197, 204 



Creek station 129 



River 89 



Bear's Church 98 



Beaver Creek 200,210 



Bellevue Mountain 257, 258 



Peak 65 



Belmont lode 298 



Bergen Park 207 



Park Mountain 89 



Berthoud, E. L ..97, 106, 108, 109, 112, 120, 



126, 136 

 Berthoud Pass group of mountains, 153 



Berthoud's Pass 87 



Big Boulder Creek 30 



Horn range 20, 49 



Thompson Creek. 20, 21, 89, 96, 98, 102, 



133, 151 



Binney, William G., report of 623 



Biotite ....268,269 



Birdseye gulch 41 



Birdseye schist 22 



Black Eagle lode 302 



Hills 20,21,49 



Mountain 302 



Pyramid Peak 61,63 



Warrior lode 302 



BlueRiver 40,61,74,79,80 



Mountains 157, 187, 189, 190 



range 47,68,75,76,79,189 



terraces 81 



Valley 184,187 



Bobtail Hill 281 



lode 285 



mine 285 



Bogg's ranch 328 



Boulder City 29, 97, 122, 131, 135 



County 291 



Creek '. 122,128 



Pass 87,150 



Peak 97 



Valley 29 



Valley region 124 



Bowles, Mount 239 



Bos Elder Creek.... ^ 105,121 



Bradford Hill 137 



Breccia 180 



volcanic 319 



Breckenridge 83 



Briggs lode 286 



Brooks, Eli 109 



Bross, Mount, 81, 168, 169, 171, 175, 225, 226 



Brown Mountain 297 



Buckeye lode 304 



Buckskin Creek 226,229 



gulch 226, 227, 228, 229 



fault in 228 



Mountain 226 



Buffalo Peaks 50,237 



Bulldog lode 299 



Burleigh tunnel 299 



Burroughs lode 288 



Byers, Mount 88, 90, 91, 153, 161, 170 



