Z12389150 USGS H12389150 4801421145556003030029SW170102132.54 3850 N12389150 Mcgregor Creek trib near Marion MT Y12389150 312389150 1972 80.0Bm 2.60 Bm 312389150 1973 13.0Bm 0.92 Bm 312389150 19740612 17.0 1.07 312389150 19750624 11.0 0.83 312389150 19760511 12.02 312389150 19770426 1.002 312389150 19780331 6.002 312389150 19790506 18.0 0.95 312389150 19800614 27.0 1.15 312389150 19810523 25.0 1.10 312389150 19820518 18.0 0.98