SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 75, NO. 1, PL. 6 



V -^W^^iai^i^;;'"'^^ 



..* 



Fault in Mens limestones, Sinclair Canyon, about 1,500 feet (457.2 m ) 

 east Of Gates of the Canyon, Hade 45° N. E. (Photo by Walcott, 1922.) 



