CONTENTS (Continued) 



PART III 



SOME ESSENTIALS OF THE PHYSICAL GEOGRAPHY OF 



SOUTHERN CALIFORNIA 



Page 



California in General 63 



Chief Sub-divisions 64 



The Crosstrends 65 



The Transcontinental Line of Cross Structures 66 



The Pacific and Desert Sides 68 



Great Basin Features 68 



The Colorado Depression 69 



The Pacific Side 71 



The Coast Ranges 72 



Southern California 74 



Southern California Is Different 75 



Geographic Units of Southern California 76 



The Highlands 76 



Highlands of the Transverse Belt 79 



The Piru Divide 79 



The Santa Ynez Range 80 



The Ventura Ranges 80 



The Santa Monica-Anacapa Chain 82 



The Master Highlands of the Transverce Belt 85 



Transverse Highlands of the Desert Side 86 



Valleys of the Tranverse Belt 87 



The Foothill Valleys 88 



Valleys of the Desert Side 89 



The Peninsular Highlands 89 



Various Features of the Northern End 90 



The Dominguez Range 93 



The Downey Valley Plain 94 



The Drainage 95 



Submerged California 97 



The Abyssal Escarpment and Coast Bench 98 



The Submerged Mountain Ranges 98 



The Catalina Group 99 



The Anacapa Range 99 



Submarine Valleys and Fault Scarps 100 



Two Ages of Submarine Ranges 100 



X 



