Z05458560 USGS H05458560 4256110931209001919033SW07080204123 1050 N05458560 Beaverdam Creek near Sheffield, IA Y05458560 305458560 19660209 2000 56.06 305458560 19670610 1360 55.12 305458560 1968 3504Bm 305458560 19690625 180002 59.82 305458560 19700513 1400 55.40 305458560 19710607 1340 55.32 305458560 1972 6104Bm 305458560 19730527 1850 56.04 305458560 1974 6104Bm 305458560 19750428 3150 57.02 305458560 1976 6104Bm 305458560 19770505 1600 55.73 305458560 19780615 3000 56.77 305458560 19790822 4400 57.51 305458560 19800817 1670 55.81 305458560 19810624 1950 56.35 305458560 19820320 1450 55.73 2 56.89 305458560 19830629 2150 56.53 305458560 19840617 95002 58.90 305458560 1985 6104Bm 305458560 19860318 3700 57.34 305458560 1987 6504Bm 305458560 1988 6504Bm 305458560 1989 6504Bm