

M EM. MUSEUM COMPZOOLVOL VI. 



PLATE N 



Fid i 



I' - lg- 2 • 



Rolled Vo/oCtJltr 







Gravel ■/()' 



% 



« 



1 



<0 



Gravel 1BS' 



Y. 



._\ 



>Vir/ level 



1 700 ' 



SECTION ACROSS GRAVEL AT OLD PACTOLUS AND CEMENT CLAIMS. 



Fitf.3. 



A 



I* 



BedrRock 





SECTION AT PEARLS HILL. 



ft 



3 



Fi^.4 



b 





s 





\ 







7T 



C 



ft 5 





3 









5> 



CM 





v. 



8 





ft 



i 



i 



I Utile** 



\ 



ML. 



V 



SECTION ACROSS GRAVEL FROM THE MIDDLE TO THE SOUTH YUBA . 



SECTION AT MOONEY FLAT. 



SECTION AT MOONEY FLAT. 



Fig.5. 



I 



v 

 A 





* I 



• 3*< - - ; v ■ 



■ » ■ _ 



Volcanic To/a 



Slide 



5 





V 

 A 



■i *y 



* ' ' > j 



■ J. ■ ? I 



. ■ * ■ - - ' :- ■ & ■ ■ ' 



■ 



■ 





L 











. . 





Sand 



and 



\ 



A 



8 



\ 





Bed Rode 



r / 



SECTION AT BOSTON MINE. 



Fig. 6 



■ 



/.(<)</ 





Bed 

 Rock 





/ 



■ 

 ■ 



a • 





^ 







' ' 



SECTION AT ALPHA. 





J.Bu-n.lilh.N.Y. 



