Z15214000                       USGS 
H15214000       6040181444441000202261SW1902010424030          150.             
N15214000       COPPER R AT MILLION DOLLAR BRIDGE NR CORDOVA AK
Y15214000       
315214000       19880806 2520003              45.63                      
315214000       19890713 236000               44.80                      
315214000       19900815 273000               46.67                      
315214000       19910819 237000               44.81                      
315214000       19920809 3090003              48.54                      
315214000       19930816 258000               45.15                      
315214000       19940812 234000               44.84                      
315214000       19950923 4150003              52.26                      
315214000       20050713 287000              145.13   6                  
315214000       20060822 3110003             146.18                      
315214000       20061011 444000              151.33                      
315214000       20090801 3080003             146.05                      
315214000       20100806 279000              144.85                      
315214000       20110717 235000              142.80                      
315214000       20120923 276000              144.70                      
315214000       20130909 349000              147.96                      
315214000       20140915 251000              144.57                      
315214000       20150728 266000              144.58                      
315214000       20160722 3340003             147.86                      
315214000       20170808 219000              143.55                      
315214000       20180809 343000              148.17                      
315214000       20190703 3520009             149.13                      
315214000       20200725 2110009             142.93                      
315214000       20210630 2380009             143.96                      
315214000       20220910 288000              146.29                      
315214000       20230830 3560009             149.16