Z06058700 USGS H06058700 4634161114924003030049SW100301017.93 4060 N06058700 Mitchell Gulch near East Helena MT Y06058700 306058700 195903 53.0Bd 0.96 Bd 306058700 19600319 6.00 0.32 306058700 19610629 2.00 0.27 306058700 19620320 12.0 0.43 306058700 19630204 107 1.41 306058700 1964 0.00Bm 306058700 19650401 28.0 0.62 306058700 19660310 50.0 0.93 306058700 19670322 52.0 0.94 306058700 1968 0.00Bm 306058700 19690331 90.0 1.06 306058700 19700712 2.00 -1.28 306058700 19710210 4.00 -1.07 306058700 1972 0.00Bm 306058700 19730907 139 0.51 306058700 19740115 53.0 -0.24 306058700 19750420 90.0 0.24 306058700 19760317 2.002 -1.19 306058700 1977 0.00Bm 306058700 19780320 82.0 0.46 306058700 19790618 43.0 -0.21 306058700 19800412 25.0 -0.57 306058700 19810522 105 0.77 306058700 19820520 9.00 -0.70 306058700 19830519 9.00 -0.70 306058700 19840105 2.002 -1.17 1 306058700 19850316 24.0 -0.74 306058700 19860225 195 1.76 306058700 19870924 1.002 -2.06 306058700 1988 0.00Bm 306058700 19890330 31.0 -0.24 306058700 19900819 127 2.10 306058700 1991 0.00Bm 306058700 1992 0.00Bm 306058700 19930315 62.0 0.41 306058700 19940302 22.0 -0.93 306058700 19950201 14.0 -1.28 306058700 19960207 120 1.86 306058700 19970320 5.00 -1.74 306058700 19980324 15.0 -1.22 306058700 1999 0.00Bm 306058700 2000 0.00Bm 306058700 20010424 4.002 0.18 306058700 2002 0.00Bm 306058700 20030313 255 4.14