Z06605340 USGS H06605340 4305160950940001919041SW1023000322.3 N06605340 Prairie Creek near Spencer, IA Y06605340 306605340 19660602 720 89.45 306605340 19670616 170 87.73 306605340 19680923 270 88.62 306605340 19690625 1250 90.13 306605340 1970 1104Bm 306605340 19710704 22002 90.77 306605340 19720627 225 88.13 306605340 19730306 480 88.79 306605340 1974 1104Bm 306605340 19750428 510 88.89 306605340 1976 1104Bm 306605340 1977 1104Bm 306605340 1978 1104Bm 306605340 19790322 1080 89.85 306605340 19800605 520 89.13 306605340 19810704 400 88.80 306605340 19820709 1250 90.19 306605340 19830620 940 90.66 306605340 19840621 700 89.53 306605340 19850615 260 88.24 306605340 19860424 783 89.52 306605340 1987 1504Bm 306605340 1988 1444Bm 306605340 1989 1394Bm 306605340 1990 1344Bm 306605340 19910414 269 88.24 306605340 19920726 671 89.68 306605340 19930831 1420 90.68 306605340 19940613 1640 91.05 306605340 19950805 135 87.46 306605340 1996 99.04Bm 306605340 19970319 298 88.97 306605340 1998 68.04Bm 306605340 19990606 166 88.05 306605340 2000 63.04Bm 306605340 20010507 474 89.86 306605340 2002 58.04Bm 306605340 20030626 152 88.50 306605340 20040524 811 90.79 306605340 20050412 79.0 87.07 306605340 20060409 205 88.67 306605340 20070506 398 89.76 306605340 20080613 398 89.76 306605340 20090210 342 89.56 306605340 20100626 2660 92.28 306605340 20110711 893 90.79 306605340 20120505 2590 92.24 306605340 20130526 520 90.10 306605340 20140616 2000 91.87 306605340 2015 55.24Bm 306605340 20160501 270 89.17 306605340 20180921 92.60 306605340 20190313 90.50 1 306605340 20200301 87.74 306605340 20210310 86.41 306605340 20220705 86.74 306605340 20230321 89.36