BULL. GEOL SOC. AM. 



VOL. 18, 1906, PL. 74 



I'^iGURE 1. — Cap wheub Tuuckkio Itivioi; lf.aves the Mi.;aiiii\vb axu k.nteus the Vh;- 



GINIA IJANGE 



Mountains I'iso 2,000 to 3,000 feet above the valic.v. Looking' east. Pbotograpli b.v 



■ O. J. Young , 





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Figure 2. — I'leistocene Gravels west op Reno 



'I'hirty-l'oot I'ault near center of section, its scarp destroyed by river planation. Aggra- 

 dation shown here probably related to upward movement in Virginia range, which is 

 visible in the distance 



VIEWS ILLUSTRATING HISTORY OF TRUCKEE RIVER 



