878 



INDEX. 



McKinnoy's Pass, rhyolite hills 



Medicine Bow Kakge 



Colorado Cretaceous. 



diorlte-schist 



drainage of 



epidote in Archwan . 



Page. 



695 



94 



.... 84,83 



99 



95 



108 



Pox Hill Cretaceous 84, 85, 86 



garnet in Arcbsean 109 



glacial erosion 96 



gold in Archaean 109 



hornblende-gneiss 99 



limestone in Archa;an 107 



Medicine Bow Peak, altitude. 94 



magnetite in Archaean 108 



pyrites in Archaean 108 



red jasper conglomerate in 



Archaean 106 



timber line 97 



Eiver 142 



Butte, Aspen Plateau, Cretaceous 330 



Peak, argilliteunder quartzite 105 



cyanite in quartzite 104 



compressed pebbles in quartzite 104 



Medway Hot Springs, Provo Valley 318 



Melapby r, Berkshire CaiSon 839 



MelroBe Mountain, "Wachoe Mountains, diorite 478 



Menilitesiu Tertiary 591 



Mesozoio Strata, Big Thompson Cafion 57 



Park 's Station 54 



Sentinel Hill, North Park 117 



Metamorphism in Koipato Triassic 718 



sandstone, Black Butte 232 



Mica-diorite, ChatayaPeak 700 



schist in Archaean, Colorado Eange 25 



Medicine Bow Kange 105 



PahkeahPeak 776 



Shoshone Kange 637 



Cambrian, Egan Cafion 488 



Spruce Mountain 500 



Microlitesiu quartz 676 



Microscope, value in determining rocks 756 



Mill Cafion, "Wahsatch Kange, Ogden Quartzite 377 



Creek Cauon, Wahsatch Kange, Weber Quartzite. 368 



LaramiePlaius coalin-BasHillCretaceous 85 



Miller Mine, American Fork Calion, Wahsatch Kange 353 



Miner's Canon 810 



diabase 810 



propylite 810 



Triassic 8U9 



Mining, Black Kock Mountains 793 



Miocene Lake Basin, altitude of 66 



Miser Kailroad Cut in Colorado Cretaceous 84 



Moke-moke Kidge, White Pine 517 



Moleen Cafion, section of Carboniferous 5 9 



Moleen Peak 600 



Monitor Peak, altitude of 19 



Montezuma Kange and Kawsoh Mountains » 751 



Montezuma Kange 751 



Archaean 753 



basalt 757,758,760,763 



diorite 756 



feldspar-porphyry in Jurassic . . . 756 



geological structure 751, 756 



Granite Point granite 754 



Jurassic 753,755,761 



Pftge. 



MontezumaKange, Jurassic, thickness of 753 



Karnak Kidge 761 



pearlite 750 



propylite • 765 



syenite 756 



Moore's Fork, Yampa Kiver, Sulphur Springs 183 



MOPUNG Hills 733 



rhyolite 734 



breccia 735 



salt on rhyolite 735 



Morgan Peak, Wahsatch Kange, Wahsatch lime- 

 stone 384 



Morgan Valley, Humboldt Pliocene 381 



trachyte 381 



Vermillion Creek Eocene 381 



Moss agates in Bridger Eocene 245 



Niobrara Pliocene 71 



Mountain Dell Pass, Dakota conglomerate : . . 382 



Wells Station, Pah TJte Kange, basalt 704 



Mount Agassiz, Uinta Kange, altitude of 312 



Weber Quartzite 322 



Mount AiRT Hills 643 



rhyolite 643 



Bonplan"d, East Humboldt Range, altitude. . . 528 



structure of gneiss 536 



Clark, altitude of 94 



Corson, Wyoming Conglomerate 247 



Davidson, altitude of 825 



diorite 825 



Horeb, Ibenpah Mountains, Wahsatch lime- 

 stone 472 



Lander, altitude of 792 



Lena, tlinta Kange, Weber Quartzite 289 



Moses, Fish Creek Mountains, altitude 660 



rhyolite 663 



N ebo, Wahsatch Kange, altitude 343 



structure 343 



Neva, Cortez Kange, rhyolite 612 



Weber Quartzite 610,612 



Pisgah, Toano Kange, anticlinal structure .. 505 



Kichthofen, Colorado Kange, altitude 94 



described 94 



rhyolite 119 



Steele Kidge, Fox Hill Cretaceous 153 



V6ry, altitude 789 



Weltha, ElUhead Mountains, basalt 179 



Zirkel, Colorado Kange, aliitude of 130 



described 136 



Muddy CaSon 408 



Cambrian shales 409,412 



Ogden Qnartzite 409 



Wahsatch limestone, thickness of... 409 



TJte limestone, thickness of 410 



Mountain, Wyoming Conglomerate 189 



Mud lakes, altitude of 792 



described 790 



springs, Grass Valley 688 



Volcanoes, Granite Kange 799. 



Mullen's Gap, Virginia Kange 844 



pearlites 846 



quartzpropylite 844 



rhyolite 846 



breccia 847 



Mushroom forms of calcareous tufa 818 



Musk-ox in Quaternary, Salt Lake Valley 439 



