# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-02 14:32:54 EDT # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 06058700 Mitchell Gulch near East Helena MT # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 06058700 1959-03-00 53.0 Bd 0.96 Bd USGS 06058700 1960-03-19 6.00 0.32 USGS 06058700 1961-06-29 2.00 0.27 USGS 06058700 1962-03-20 12.0 0.43 USGS 06058700 1963-02-04 107 1.41 USGS 06058700 1964-00-00 0.00 Bm USGS 06058700 1965-04-01 28.0 0.62 USGS 06058700 1966-03-10 50.0 0.93 USGS 06058700 1967-03-22 52.0 0.94 USGS 06058700 1968-00-00 0.00 Bm USGS 06058700 1969-03-31 90.0 1.06 USGS 06058700 1970-07-12 2.00 -1.28 USGS 06058700 1971-02-10 4.00 -1.07 USGS 06058700 1972-00-00 0.00 Bm USGS 06058700 1973-09-07 139 0.51 USGS 06058700 1974-01-15 53.0 -0.24 USGS 06058700 1975-04-20 90.0 0.24 USGS 06058700 1976-03-17 2.00 2 -1.19 USGS 06058700 1977-00-00 0.00 Bm USGS 06058700 1978-03-20 82.0 0.46 USGS 06058700 1979-06-18 43.0 -0.21 USGS 06058700 1980-04-12 25.0 -0.57 USGS 06058700 1981-05-22 105 0.77 USGS 06058700 1982-05-20 9.00 -0.70 USGS 06058700 1983-05-19 9.00 -0.70 USGS 06058700 1984-01-05 2.00 2 -1.17 1 USGS 06058700 1985-03-16 24.0 -0.74 USGS 06058700 1986-02-25 195 1.76 USGS 06058700 1987-09-24 1.00 2 -2.06 USGS 06058700 1988-00-00 0.00 Bm USGS 06058700 1989-03-30 31.0 -0.24 USGS 06058700 1990-08-19 127 2.10 USGS 06058700 1991-00-00 0.00 Bm USGS 06058700 1992-00-00 0.00 Bm USGS 06058700 1993-03-15 62.0 0.41 USGS 06058700 1994-03-02 22.0 -0.93 USGS 06058700 1995-02-01 14.0 -1.28 USGS 06058700 1996-02-07 120 1.86 USGS 06058700 1997-03-20 5.00 -1.74 USGS 06058700 1998-03-24 15.0 -1.22 USGS 06058700 1999-00-00 0.00 Bm USGS 06058700 2000-00-00 0.00 Bm USGS 06058700 2001-04-24 4.00 2 0.18 USGS 06058700 2002-00-00 0.00 Bm USGS 06058700 2003-03-13 255 4.14