ILLUSTRATIONS (Contini(cd) 



Page 



Peculiar vegetation following rift, near Arrowhead Hotel. . 133 



Belted ridges between rift lines, Cajon Pass 140 



San Antonio Peak. Fault block structure of the San 

 Gabriel Highland. (Putnam) 145 



Cajon Pass and San Gabriel peaks from Arrowhead. Every 

 lineament a rift line. (Putnam Studios) 149 



Crater at Lavic, near Cadiz rift. The molten sub-crust 

 sometimes reaches the surface along fault line 155 



Crater and lava flow near Amboy 156 



San Jacinto fault scarp. Two or more uplifts 165 



Mud volcanoes near rift lines, south of Mexicali. Crater in 

 background 174 



San Gabriel scarp and terraces of elevation, mouth of 

 Tujunga Creek 178 



San Gabriel scarp northeast of Pasadena, showing rifts and 

 kernbuts 179 



Rift in desert mountains, near Dale Mine 187 



Edges of fault blocks grooved by ancient glaciers 193 



Floating wood blocks which illustrate the up-and-down 

 isostatic movements of fault blocks. (Tabor) 196 



East front of Sierra Nevada. Some fault scarps rise to 



glacial heights. (Kindness Wm. Mulholland) 200 



Folded strata between fault lines. Avenue 64, near Church 

 of the Angels, Los Angeles 204 



Folded strata between faults. Dark Canyon Boulevard, Los 

 Angeles 217 



Gigantic peaks surmounting San Bernardino fault block. 

 San Andreas and Mill Creek faults in middle ground. 

 (Mendenhall) 226 



Mount Whitney. The altitudinal climax of the great Sierra 

 Nevada fault. (Auto Club photo) 230 



XV 



