Z06313100                       USGS 
H06313100       4327001061400005656025SW1009020411.5           4880             
N06313100       COAL DRAW NEAR MIDWEST, WY
Y06313100       
306313100       19610707    223                6.41                      
306313100       19620521   1050               10.20                      
306313100       19630709   1880               12.00                      
306313100       19640622   2620               13.40                      
306313100       19650724    337                7.11                      
306313100       19660605    805                9.13                      
306313100       19670918   1020                9.79                      
306313100       19680823    640                8.55                      
306313100       19690720   24.0                4.66                      
306313100       19700723   1650               11.49                      
306313100       197105     20.0Bd                                        
306313100       19720824   1300               10.62   2                  
306313100       19730902    308                6.95                      
306313100       197404      1734Bd                                       
306313100       19750521   43.0                4.90                      
306313100       19760530    340                7.12                      
306313100       19770807   1700               12.18                      
306313100       19780707    580                8.29                      
306313100       19790730    350                7.19                      
306313100       19800723   1430               10.93                      
306313100       19810717   2900               14.93                      
306313100       19820802   6380               18.63                      
306313100       19830723    660                8.60                      
306313100       19840730    190                6.19