Z06430770 USGS H06430770 4417571035203004646081SW1012020364.8 64.8 5295.68 N06430770 SPEARFISH CREEK NR LEAD, SD Y06430770 306430770 19890512 30.06 7.45 2 7.53 306430770 19900502 28.06 7.46 2 7.51 306430770 19910710 34.06 7.53 2 7.79 306430770 19920701 31.06 7.53 306430770 19930608 51.06 7.64 306430770 19940425 66.06 7.74 306430770 19950508 1446 8.22 306430770 19960511 74.06 7.83 306430770 19970724 90.06 7.93 306430770 19980820 1816 8.39 306430770 19990612 1326 8.23 306430770 20000511 75.06 7.87 306430770 20010701 53.06 7.75 2 8.33 306430770 20020918 62.06 7.75 306430770 20030614 48.06 7.70 306430770 20040704 48.06 7.65 2 8.28 306430770 20050508 42.06 7.60 2 7.66 306430770 20060923 42.06 7.63 2 8.01 306430770 20070601 72.06 7.83 306430770 20080524 65.06 7.78 1 306430770 20090424 62.06 7.78 306430770 20100624 78.06 7.87 306430770 20110523 1116 7.87 2 7.92 306430770 20120121 47.06 7.74 2 7.96 306430770 20130601 78.06 7.89 306430770 20140505 97.06 7.92 2 7.99 306430770 20150620 72.06 7.85 306430770 20151023 56.06 7.70 2 7.72 306430770 20161003 47.06 7.69 306430770 20180622 57.16 7.77 2 7.80 306430770 20190704 81.56 7.94 306430770 20200503 61.76 7.81 306430770 20210523 49.46 7.71 2 7.75 306430770 20220530 45.66 7.72 306430770 20230608 41.96 7.67 2 8.14