Z15477790                       USGS 
H15477790       6422371445635000202240SW19080303115            1250             
N15477790       CENTRAL C NR BIG DELTA AK
Y15477790       
315477790       19980523    345               44.25                      
315477790       19990515    473               44.51                      
315477790       20000813   1340               45.43                      
315477790       20010729    535               44.53                      
315477790       20020817   1700               45.72                      
315477790       20030901   1720               45.73                      
315477790       20040507   2800               46.42                      
315477790       20050620   1090               46.06