436 



Index 



Lava plain of the north 96; character 



and extent of 104-105 

 Lava in Sacramenta Valley 406 

 Lavas, variety of 99 

 Little San Bernardino Mountains 21 

 Livermore Valley 149 

 Lodes, from solutions 303 

 Los Angeles aqueduct 21, 27, 123 

 Los Angeles Basin 36, 272, 273 

 Los Angeles oil fields 273 

 Los Angeles, under the sea in Late 



Tertiary time 84 

 Lost interval 72, 75, 88 

 Lytle Canyon, mouth of 36 



Magma, defined 100, 244; molten 

 rock 240 



Manix Lake 352-355 



Mariposa formation 174 



Mariposa Grove of Big Trees 29 



Marysville Buttes 400 



Matthes, Francois E., quoted 108- 

 111, 167, 174 



Mendocino County 418 



Mesas 336 



Mesozoic 57; era, close of 76 



Metamorphism 67, 73 



Mint Canyon 363 



Modoc County, lava plateau 96 



Mojave Desert 23, 25, 118 



Mojave River 54, 122; a superim- 

 posed stream 351 



Mojave Sink 353, 354 



Mono Lake 29 



Monterey group 77, 78; oil in 79 



Monterey formation source of oil 291 



Moraines 204; how formed 195, 199, 

 200; materials of 201; in Bishop 

 Creek, Inyo County 184; in Owens 

 Valley 185; in High Sierras 30; on 

 San Bernardino Range 236 



Moron go Valley 22 

 Mother Lode 73, 172, 304 

 Mt. Diablo 154 

 Mt. Langley 27 

 Mt. San Jacinto 10, 20 

 Mt. Shasta 32, 33, 93 

 Mt. Whitney 1, 27, 56 

 Mountains of the south 222 

 Mud Hills formation 1 1 2 

 Mud volcanoes 117, 341 

 Muir Woods 1 5 2 

 Natural Bridge 77 

 Ned Gulch 387 

 Nevada City 392 



Oil, from anticlines 295; not inex- 

 haustible; in Monterey group 79; 

 in Monterey shale 293; accumu- 

 lated in sandstones 134, 294; struc- 

 tures 133 



Oozes 289, 291 



Oregon caves 420 



Owens Lake 26, 123, 368, 369 



Owens River 26, 123, 368 



Owens Valley 27, 178, 179, 180, 368; 

 earthquake in 176; lava flows in 

 186-187 



Oyster beds 338; in Colorado Desert 

 84; San Francisco Bay 383 



Painted Desert 20 



Palm Canyon 20, 341 



Palmdale 364 



Palms-to-Pines Highway 342 



Palm Springs 21, 238, 335, 341 



Paso Robles Canyon 380 



Peneplain 247; of Salinas Valley 46 



Peninsular Range 223, 227, 336 



Pepper trees 9 



Ferris Plain 259; peneplain 255 



Petrified Forest 20, 412 



