# //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: 2026-10-15 13:05:02 # //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="06120500 " TIME_ZONE="MST" DST_FLAG=Y # //STATION NAME="Musselshell River at Harlowton MT" # //LABEL="Discharge (ft^3/s)" # //PARAMETER CODE="00060" # //RATING SHIFTED="20261015130502 MST" # //RATING ID="19.1" TYPE="STGQ" NAME="stage-discharge" AGING=???? # //RATING REMARKS="Rating extension to 2.3 based on low flow measurements 1090 and 1091. A GZF was calculated near 2.28ft +/- .1ft " # //RATING EXPANSION="logarithmic" # //RATING BREAKPOINT1=4.598838E+00 # //RATING OFFSET1=2.240000E+00 OFFSET2=2.900000E+00 # //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)" # //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)" # //RATING_DATETIME BEGIN=20260731011500 BZONE=-07:00 END=-------------- EZONE=--- AGING=1 # //RATING_DATETIME COMMENT="provisional extension to the lower end " # //SHIFT_PREV BEGIN="20261014101900" BZONE="-07:00" END="--------------" EZONE="---" # //SHIFT_PREV STAGE1="5.25" SHIFT1="-0.11" STAGE2="6.50" SHIFT2="0.00" # //SHIFT_PREV COMMENT="Adjusting to a -.11 shift due to moderate algae. Rated fair." # //SHIFT_NEXT BEGIN="--------------" BZONE="---" END="--------------" EZONE="---" # //SHIFT_NEXT STAGE1="---" SHIFT1="---" STAGE2="---" SHIFT2="---" STAGE3="---" SHIFT3="---" # //SHIFT_NEXT COMMENT=" " INDEP SHIFT DEP STOR 16N 16N 16N 1S 2.41 -0.11 0.28 2.42 -0.11 0.39 2.43 -0.11 0.53 2.44 -0.11 0.68 2.45 -0.11 0.86 2.46 -0.11 1.06 2.47 -0.11 1.28 2.48 -0.11 1.52 2.49 -0.11 1.79 2.50 -0.11 2.08 2.51 -0.11 2.39 2.52 -0.11 2.73 2.53 -0.11 3.09 2.54 -0.11 3.48 2.55 -0.11 3.89 2.56 -0.11 4.33 2.57 -0.11 4.79 2.58 -0.11 5.27 2.59 -0.11 5.79 2.60 -0.11 6.32 2.61 -0.11 6.89 2.62 -0.11 7.48 * 2.63 -0.11 8.10 2.64 -0.11 8.74 2.65 -0.11 9.41 2.66 -0.11 10.11 2.67 -0.11 10.83 2.68 -0.11 11.58 2.69 -0.11 12.36 2.70 -0.11 13.17 2.71 -0.11 14.00 2.72 -0.11 14.86 2.73 -0.11 15.75 2.74 -0.11 16.67 2.75 -0.11 17.62 2.76 -0.11 18.59 2.77 -0.11 19.59 2.78 -0.11 20.62 2.79 -0.11 21.68 2.80 -0.11 22.77 2.81 -0.11 23.89 2.82 -0.11 25.04 2.83 -0.11 26.21 2.84 -0.11 27.42 2.85 -0.11 28.65 2.86 -0.11 29.91 2.87 -0.11 31.21 2.88 -0.11 32.53 2.89 -0.11 33.88 2.90 -0.11 35.26 2.91 -0.11 36.68 2.92 -0.11 38.12 2.93 -0.11 39.59 2.94 -0.11 41.10 2.95 -0.11 42.63 2.96 -0.11 44.19 2.97 -0.11 45.79 2.98 -0.11 47.41 2.99 -0.11 49.07 3.00 -0.11 50.75 3.01 -0.11 52.47 3.02 -0.11 54.22 3.03 -0.11 56.00 3.04 -0.11 57.81 3.05 -0.11 59.65 3.06 -0.11 61.52 3.07 -0.11 63.43 3.08 -0.11 65.36 3.09 -0.11 67.33 3.10 -0.11 69.33 3.11 -0.11 71.36 3.12 -0.11 73.42 3.13 -0.11 75.52 3.14 -0.11 77.64 3.15 -0.11 79.80 3.16 -0.11 81.99 3.17 -0.11 84.21 3.18 -0.11 86.47 3.19 -0.11 88.75 3.20 -0.11 91.07 3.21 -0.11 93.42 3.22 -0.11 95.81 3.23 -0.11 98.22 3.24 -0.11 100.67 3.25 -0.11 103.16 3.26 -0.11 105.67 3.27 -0.11 108.22 3.28 -0.11 110.80 3.29 -0.11 113.41 3.30 -0.11 116.06 3.31 -0.11 118.74 3.32 -0.11 121.45 3.33 -0.11 124.19 3.34 -0.11 126.97 3.35 -0.11 129.78 3.36 -0.11 132.63 3.37 -0.11 135.51 3.38 -0.11 138.42 3.39 -0.11 141.37 3.40 -0.11 144.35 3.41 -0.11 147.36 3.42 -0.11 150.41 3.43 -0.11 153.49 3.44 -0.11 156.60 3.45 -0.11 159.75 3.46 -0.11 162.93 3.47 -0.11 166.15 3.48 -0.11 169.40 3.49 -0.11 172.68 3.50 -0.11 176.00 3.51 -0.11 179.35 3.52 -0.11 182.74 3.53 -0.11 186.16 3.54 -0.11 189.62 3.55 -0.11 193.11 3.56 -0.11 196.63 3.57 -0.11 200.19 3.58 -0.11 203.78 3.59 -0.11 207.41 3.60 -0.11 211.08 3.61 -0.11 214.77 3.62 -0.11 218.51 3.63 -0.11 222.27 3.64 -0.11 226.08 3.65 -0.11 229.91 3.66 -0.11 233.78 3.67 -0.11 237.69 3.68 -0.11 241.63 3.69 -0.11 245.61 3.70 -0.11 249.62 3.71 -0.11 253.67 3.72 -0.11 257.75 3.73 -0.11 261.87 3.74 -0.11 266.03 3.75 -0.11 270.21 3.76 -0.11 274.44 3.77 -0.11 278.70 3.78 -0.11 282.99 3.79 -0.11 287.33 3.80 -0.11 291.69 3.81 -0.11 296.09 3.82 -0.11 300.53 3.83 -0.11 305.01 3.84 -0.11 309.52 3.85 -0.11 314.06 3.86 -0.11 318.64 3.87 -0.11 323.26 3.88 -0.11 327.91 3.89 -0.11 332.60 3.90 -0.11 337.33 3.91 -0.11 342.09 3.92 -0.11 346.89 3.93 -0.11 351.72 3.94 -0.11 356.59 3.95 -0.11 361.50 3.96 -0.11 366.44 3.97 -0.11 371.42 3.98 -0.11 376.43 3.99 -0.11 381.48 4.00 -0.11 386.57 4.01 -0.11 391.70 4.02 -0.11 396.86 4.03 -0.11 402.06 4.04 -0.11 407.29 4.05 -0.11 412.56 4.06 -0.11 417.87 4.07 -0.11 423.21 4.08 -0.11 428.59 4.09 -0.11 434.01 4.10 -0.11 439.47 4.11 -0.11 444.96 4.12 -0.11 450.49 4.13 -0.11 456.05 4.14 -0.11 461.66 4.15 -0.11 467.30 4.16 -0.11 472.97 4.17 -0.11 478.69 4.18 -0.11 484.44 4.19 -0.11 490.23 4.20 -0.11 496.05 4.21 -0.11 501.91 4.22 -0.11 507.81 4.23 -0.11 513.75 4.24 -0.11 519.73 4.25 -0.11 525.74 4.26 -0.11 531.79 4.27 -0.11 537.87 4.28 -0.11 544.00 4.29 -0.11 550.16 4.30 -0.11 556.36 4.31 -0.11 562.60 4.32 -0.11 568.87 4.33 -0.11 575.18 4.34 -0.11 581.53 4.35 -0.11 587.92 4.36 -0.11 594.35 4.37 -0.11 600.81 4.38 -0.11 607.31 4.39 -0.11 613.85 4.40 -0.11 620.43 4.41 -0.11 627.05 4.42 -0.11 633.70 4.43 -0.11 640.39 4.44 -0.11 647.12 4.45 -0.11 653.89 4.46 -0.11 660.69 4.47 -0.11 667.54 4.48 -0.11 674.42 4.49 -0.11 681.34 4.50 -0.11 688.30 4.51 -0.11 695.29 4.52 -0.11 702.33 4.53 -0.11 709.40 4.54 -0.11 716.51 * 4.55 -0.11 723.66 4.56 -0.11 730.85 4.57 -0.11 738.08 4.58 -0.11 745.34 4.59 -0.11 752.65 4.60 -0.11 759.99 * 4.61 -0.11 767.37 4.62 -0.11 774.79 4.63 -0.11 782.25 4.64 -0.11 789.75 4.65 -0.11 797.28 4.66 -0.11 804.78 4.67 -0.11 812.27 4.68 -0.11 819.79 4.69 -0.11 827.35 4.70 -0.11 834.95 4.71 -0.11 842.52 4.72 -0.11 849.65 * 4.73 -0.11 856.79 4.74 -0.11 863.94 4.75 -0.11 871.12 4.76 -0.11 878.31 4.77 -0.11 885.53 4.78 -0.11 892.76 4.79 -0.11 900.00 4.80 -0.11 907.27 4.81 -0.11 914.55 4.82 -0.11 921.85 4.83 -0.11 929.14 4.84 -0.11 936.28 4.85 -0.11 943.44 4.86 -0.11 950.62 4.87 -0.11 957.81 4.88 -0.11 965.02 4.89 -0.11 972.24 4.90 -0.11 979.48 4.91 -0.11 986.73 4.92 -0.11 994.00 4.93 -0.11 1001.29 4.94 -0.11 1008.59 4.95 -0.11 1015.90 4.96 -0.11 1023.23 4.97 -0.11 1030.57 4.98 -0.11 1037.93 4.99 -0.11 1045.30 5.00 -0.11 1052.69 5.01 -0.11 1060.10 5.02 -0.11 1067.52 5.03 -0.11 1074.95 5.04 -0.11 1082.40 5.05 -0.11 1089.86 5.06 -0.11 1097.33 5.07 -0.11 1104.83 5.08 -0.11 1112.33 5.09 -0.11 1119.85 5.10 -0.11 1127.39 5.11 -0.11 1134.94 5.12 -0.11 1142.50 5.13 -0.11 1150.08 5.14 -0.11 1157.67 5.15 -0.11 1165.27 5.16 -0.11 1172.89 5.17 -0.11 1180.53 5.18 -0.11 1188.18 5.19 -0.11 1195.84 5.20 -0.11 1203.52 5.21 -0.11 1211.21 5.22 -0.11 1218.91 5.23 -0.11 1226.63 5.24 -0.11 1234.36 5.25 -0.11 1242.11 5.26 -0.11 1250.55 5.27 -0.11 1259.01 5.28 -0.11 1267.49 5.29 -0.11 1275.98 5.30 -0.11 1284.49 5.31 -0.10 1293.01 5.32 -0.10 1301.55 5.33 -0.10 1310.11 5.34 -0.10 1318.68 5.35 -0.10 1327.27 5.36 -0.10 1335.87 5.37 -0.10 1344.49 5.38 -0.10 1353.13 5.39 -0.10 1361.78 5.40 -0.10 1370.44 5.41 -0.10 1379.13 5.42 -0.10 1387.82 5.43 -0.09 1396.54 5.44 -0.09 1405.27 5.45 -0.09 1414.01 5.46 -0.09 1422.77 5.47 -0.09 1431.55 5.48 -0.09 1440.34 5.49 -0.09 1449.14 5.50 -0.09 1457.97 5.51 -0.09 1466.80 5.52 -0.09 1475.65 5.53 -0.09 1484.52 5.54 -0.08 1493.40 5.55 -0.08 1502.30 5.56 -0.08 1511.21 5.57 -0.08 1520.14 5.58 -0.08 1529.08 5.59 -0.08 1538.04 5.60 -0.08 1547.01 5.61 -0.08 1556.00 5.62 -0.08 1565.00 5.63 -0.08 1574.01 5.64 -0.08 1583.04 5.65 -0.07 1592.09 5.66 -0.07 1601.15 5.67 -0.07 1610.23 5.68 -0.07 1619.31 5.69 -0.07 1628.42 5.70 -0.07 1637.54 5.71 -0.07 1646.67 5.72 -0.07 1655.82 5.73 -0.07 1664.98 5.74 -0.07 1674.16 5.75 -0.07 1683.35 5.76 -0.07 1692.55 5.77 -0.06 1701.77 5.78 -0.06 1711.00 5.79 -0.06 1720.25 5.80 -0.06 1729.51 5.81 -0.06 1738.79 5.82 -0.06 1748.08 5.83 -0.06 1757.38 5.84 -0.06 1766.70 5.85 -0.06 1776.04 5.86 -0.06 1785.38 5.87 -0.06 1794.74 5.88 -0.05 1804.12 5.89 -0.05 1813.50 5.90 -0.05 1822.91 5.91 -0.05 1832.32 5.92 -0.05 1841.75 5.93 -0.05 1851.19 5.94 -0.05 1860.65 5.95 -0.05 1870.12 5.96 -0.05 1879.61 5.97 -0.05 1889.10 5.98 -0.05 1898.62 5.99 -0.04 1908.14 6.00 -0.04 1917.68 6.01 -0.04 1927.23 6.02 -0.04 1936.80 6.03 -0.04 1946.38 6.04 -0.04 1955.97 6.05 -0.04 1965.58 6.06 -0.04 1975.20 6.07 -0.04 1984.83 6.08 -0.04 1994.48 6.09 -0.04 2004.14 6.10 -0.04 2013.81 6.11 -0.03 2023.49 6.12 -0.03 2033.19 6.13 -0.03 2042.91 6.14 -0.03 2052.63 6.15 -0.03 2062.37 6.16 -0.03 2072.12 6.17 -0.03 2081.89 6.18 -0.03 2091.67 6.19 -0.03 2101.46 6.20 -0.03 2111.26 6.21 -0.03 2121.08 6.22 -0.02 2130.91 6.23 -0.02 2140.75 6.24 -0.02 2150.61 6.25 -0.02 2160.48 6.26 -0.02 2170.36 6.27 -0.02 2180.25 6.28 -0.02 2190.16 6.29 -0.02 2200.08 6.30 -0.02 2210.01 6.31 -0.02 2219.96 6.32 -0.02 2229.92 6.33 -0.01 2239.89 6.34 -0.01 2249.87 6.35 -0.01 2259.87 6.36 -0.01 2269.88 6.37 -0.01 2279.90 6.38 -0.01 2289.93 6.39 -0.01 2299.98 6.40 -0.01 2310.04 6.41 -0.01 2320.11 6.42 -0.01 2330.19 6.43 -0.01 2340.29 6.44 -0.01 2350.40 6.45 0.00 2360.52 6.46 0.00 2370.65 6.47 0.00 2380.80 6.48 0.00 2390.96 6.49 0.00 2401.13 6.50 0.00 2411.31 6.51 0.00 2420.68 6.52 0.00 2430.06 6.53 0.00 2439.45 6.54 0.00 2448.85 6.55 0.00 2458.26 6.56 0.00 2467.68 6.57 0.00 2477.12 6.58 0.00 2486.56 6.59 0.00 2496.01 6.60 0.00 2505.47 6.61 0.00 2514.95 6.62 0.00 2524.43 6.63 0.00 2533.92 6.64 0.00 2543.42 6.65 0.00 2552.94 6.66 0.00 2562.46 6.67 0.00 2571.99 6.68 0.00 2581.54 6.69 0.00 2591.09 6.70 0.00 2600.66 6.71 0.00 2610.23 6.72 0.00 2619.81 6.73 0.00 2629.41 6.74 0.00 2639.01 6.75 0.00 2648.62 6.76 0.00 2658.25 6.77 0.00 2667.88 6.78 0.00 2677.52 6.79 0.00 2687.18 6.80 0.00 2696.84 6.81 0.00 2706.51 6.82 0.00 2716.20 6.83 0.00 2725.89 6.84 0.00 2735.59 6.85 0.00 2745.30 6.86 0.00 2755.03 6.87 0.00 2764.76 6.88 0.00 2774.50 6.89 0.00 2784.25 6.90 0.00 2794.01 6.91 0.00 2803.78 6.92 0.00 2813.56 6.93 0.00 2823.35 6.94 0.00 2833.15 6.95 0.00 2842.96 6.96 0.00 2852.78 6.97 0.00 2862.61 6.98 0.00 2872.45 6.99 0.00 2882.30 7.00 0.00 2892.16 7.01 0.00 2902.02 7.02 0.00 2911.90 7.03 0.00 2921.79 7.04 0.00 2931.68 7.05 0.00 2941.59 7.06 0.00 2951.50 7.07 0.00 2961.43 7.08 0.00 2971.36 7.09 0.00 2981.31 7.10 0.00 2991.26 7.11 0.00 3001.22 7.12 0.00 3011.19 7.13 0.00 3021.17 7.14 0.00 3031.16 7.15 0.00 3041.16 7.16 0.00 3051.17 7.17 0.00 3061.19 7.18 0.00 3071.22 7.19 0.00 3081.26 7.20 0.00 3091.30 7.21 0.00 3101.36 7.22 0.00 3111.43 7.23 0.00 3121.50 7.24 0.00 3131.58 7.25 0.00 3141.68 7.26 0.00 3151.78 7.27 0.00 3161.89 7.28 0.00 3172.01 7.29 0.00 3182.14 7.30 0.00 3192.28 7.31 0.00 3202.43 7.32 0.00 3212.59 7.33 0.00 3222.75 7.34 0.00 3232.93 7.35 0.00 3243.11 7.36 0.00 3253.31 7.37 0.00 3263.51 7.38 0.00 3273.72 7.39 0.00 3283.95 7.40 0.00 3294.18 7.41 0.00 3304.42 7.42 0.00 3314.66 7.43 0.00 3324.92 7.44 0.00 3335.19 7.45 0.00 3345.46 7.46 0.00 3355.75 7.47 0.00 3366.04 7.48 0.00 3376.34 7.49 0.00 3386.66 7.50 0.00 3396.98 7.51 0.00 3407.31 7.52 0.00 3417.64 7.53 0.00 3427.99 7.54 0.00 3438.35 7.55 0.00 3448.71 7.56 0.00 3459.09 7.57 0.00 3469.47 7.58 0.00 3479.86 7.59 0.00 3490.26 7.60 0.00 3500.67 7.61 0.00 3511.09 7.62 0.00 3521.52 7.63 0.00 3531.95 7.64 0.00 3542.40 7.65 0.00 3552.85 7.66 0.00 3563.31 7.67 0.00 3573.78 7.68 0.00 3584.26 7.69 0.00 3594.75 7.70 0.00 3605.25 7.71 0.00 3615.75 7.72 0.00 3626.27 7.73 0.00 3636.79 7.74 0.00 3647.32 7.75 0.00 3657.86 7.76 0.00 3668.41 7.77 0.00 3678.97 7.78 0.00 3689.54 7.79 0.00 3700.11 7.80 0.00 3710.69 7.81 0.00 3721.29 7.82 0.00 3731.89 7.83 0.00 3742.50 7.84 0.00 3753.11 7.85 0.00 3763.74 7.86 0.00 3774.38 7.87 0.00 3785.02 7.88 0.00 3795.67 7.89 0.00 3806.33 7.90 0.00 3817.00 7.91 0.00 3827.68 7.92 0.00 3838.37 7.93 0.00 3849.06 7.94 0.00 3859.76 7.95 0.00 3870.47 7.96 0.00 3881.19 7.97 0.00 3891.92 7.98 0.00 3902.66 7.99 0.00 3913.41 8.00 0.00 3924.16 8.01 0.00 3934.92 8.02 0.00 3945.69 8.03 0.00 3956.47 8.04 0.00 3967.26 8.05 0.00 3978.05 8.06 0.00 3988.86 8.07 0.00 3999.67 8.08 0.00 4010.49 8.09 0.00 4021.32 8.10 0.00 4032.16 8.11 0.00 4043.00 8.12 0.00 4053.86 8.13 0.00 4064.72 8.14 0.00 4075.59 8.15 0.00 4086.47 8.16 0.00 4097.35 8.17 0.00 4108.25 8.18 0.00 4119.15 8.19 0.00 4130.06 8.20 0.00 4140.98 8.21 0.00 4151.91 8.22 0.00 4162.85 8.23 0.00 4173.79 8.24 0.00 4184.75 8.25 0.00 4195.71 8.26 0.00 4206.67 8.27 0.00 4217.65 8.28 0.00 4228.64 8.29 0.00 4239.63 8.30 0.00 4250.63 8.31 0.00 4261.64 8.32 0.00 4272.66 8.33 0.00 4283.68 8.34 0.00 4294.72 8.35 0.00 4305.76 8.36 0.00 4316.81 8.37 0.00 4327.87 8.38 0.00 4338.93 8.39 0.00 4350.01 8.40 0.00 4361.09 8.41 0.00 4372.18 8.42 0.00 4383.28 8.43 0.00 4394.39 8.44 0.00 4405.50 8.45 0.00 4416.62 8.46 0.00 4427.75 8.47 0.00 4438.89 8.48 0.00 4450.04 8.49 0.00 4461.19 8.50 0.00 4472.35 8.51 0.00 4483.52 8.52 0.00 4494.70 8.53 0.00 4505.89 8.54 0.00 4517.08 8.55 0.00 4528.28 8.56 0.00 4539.49 8.57 0.00 4550.71 8.58 0.00 4561.94 8.59 0.00 4573.17 8.60 0.00 4584.41 8.61 0.00 4595.66 8.62 0.00 4606.92 8.63 0.00 4618.18 8.64 0.00 4629.45 8.65 0.00 4640.73 8.66 0.00 4652.02 8.67 0.00 4663.32 8.68 0.00 4674.62 8.69 0.00 4685.93 8.70 0.00 4697.25 8.71 0.00 4708.58 8.72 0.00 4719.91 8.73 0.00 4731.26 8.74 0.00 4742.61 8.75 0.00 4753.96 8.76 0.00 4765.33 8.77 0.00 4776.70 8.78 0.00 4788.08 8.79 0.00 4799.47 8.80 0.00 4810.87 8.81 0.00 4822.27 8.82 0.00 4833.69 8.83 0.00 4845.11 8.84 0.00 4856.53 8.85 0.00 4867.97 8.86 0.00 4879.41 8.87 0.00 4890.86 8.88 0.00 4902.32 8.89 0.00 4913.78 8.90 0.00 4925.26 8.91 0.00 4936.74 8.92 0.00 4948.23 8.93 0.00 4959.72 8.94 0.00 4971.23 8.95 0.00 4982.74 8.96 0.00 4994.26 8.97 0.00 5005.78 8.98 0.00 5017.32 8.99 0.00 5028.86 9.00 0.00 5040.41 9.01 0.00 5051.96 9.02 0.00 5063.53 9.03 0.00 5075.10 9.04 0.00 5086.68 9.05 0.00 5098.27 9.06 0.00 5109.86 9.07 0.00 5121.46