THE GREAT DESERTS OF CALIFORNIA AND NEVADA 



By 



Holdridge Ozro Collins, LL.D. 



PLATE 1. 

 Two desert scenes near the border between 

 Nevada and California — Colorado river basin. 



THE so-called desert regions of the United States lie in South- 

 Eastern California, Southern Nevada and about 350 miles of 

 the Southern portion of Arizona adjoining the Mexican boundary 

 line. They embrace areas whose totality is about 570.000 square 

 miles, of which 40,000 square miles lie within the two wastes called 

 the Colorado desert and the Mojave desert, in the Eastern section of 



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