Z06485550 USGS H06485550 4256180963800004646127SW101702033.50 3.50 N06485550 W UNION CR NEAR ALCESTER SD Y06485550 306485550 19690627 2100 8.95 306485550 19700527 640 6.39 306485550 19710606 940 7.50 306485550 19720607 905 7.31 306485550 19730618 425 4.60 306485550 19740622 566 5.28 306485550 19750416 128 3.14 306485550 19760312 50.0 5.28 1 306485550 19770912 276 3.93 306485550 19780722 272 3.91 306485550 197904 100Bd 7.47 Bd