# //UNITED STATES GEOLOGICAL SURVEY http://water.usgs.gov/ # //NATIONAL WATER INFORMATION SYSTEM http://water.usgs.gov/data.html # //DATA ARE PROVISIONAL AND SUBJECT TO CHANGE UNTIL PUBLISHED BY USGS # //RETRIEVED: 2026-02-18 20:00:03 # //WARNING # //WARNING The stage-discharge rating provided in this file should be # //WARNING considered provisional and subject to change. Stage-discharge # //WARNING ratings change over time as the channel features that control # //WARNING the relation between stage and discharge vary. Users are # //WARNING cautioned to consider carefully the applicability of this # //WARNING rating before using it for decisions that concern personal or # //WARNING public safety or operational consequences. # //FILE TYPE="NWIS RATING" # //DATABASE NUMBER=01 DESCRIPTION=" Standard data base for this site." # //STATION AGENCY="USGS " NUMBER="06025250 " TIME_ZONE="MST" DST_FLAG=Y # //STATION NAME="Big Hole River at Maiden Rock nr Divide MT" # //LABEL="Discharge ft^3/s" # //PARAMETER CODE="00060" # //RATING ID="5.0" TYPE="STGQ" NAME="stage-discharge" AGING=Working # //RATING REMARKS="Rating 5.0 created from clear control conditions from the past 5 to 10 years, most emphasis on recent Qms though, as a negative trend was observed. \\n\\nMost recent GZF from 2019 was used to help loosely determine the offset, but Rating will be adjusted once a new GZF is obtained in 2026. Lowered BP to encompass more of the combined section/channel control Qms. Extended upper end within 2X the highest Qm. " # //RATING EXPANSION="logarithmic" # //RATING BREAKPOINT1=4.300000E+00 # //RATING OFFSET1=1.720000E+00 OFFSET2=1.240000E+00 # //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)" # //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)" # //RATING_DATETIME BEGIN=20250419143000 BZONE=-07:00 END=-------------- EZONE=--- AGING=None # //RATING_DATETIME COMMENT="Beginning of new Rating 5.0" INDEP DEP STOR 16N 16N 1S 2.3181774E+00 7.9429263E+01 * 4.3000000E+00 1.6500000E+03 * 6.3734646E+00 5.5100000E+03 * 8.1326597E+00 1.1620000E+04 *