COLUMBIA RIVER AT CASCADE LOCKS I9II-I9I2 

 •• MARYHILL FERRY 1952-1953 



FIG. 47 



COLUMBIA RIVER at CASCADE LOCKS, 191 1 -1912 

 II II II MARYHILL FERRY, 1952-1953 



COLOR 



NITRATE(NO;) CHLORIDE (CI) 



Na -I- % K 



Ca + Mg 



FIG. 48 



72 



