# //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: 2026-02-04 18:00:03 # //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="06020600 " TIME_ZONE="MST" DST_FLAG=Y # //STATION NAME="Ruby River below reservoir near Alder, MT" # //LABEL="Discharge (ft^3/s)" # //PARAMETER CODE="00060" # //RATING SHIFTED="20260204180003 MST" # //RATING ID="15.0" TYPE="STGQ" NAME="stage-discharge" AGING=???? # //RATING REMARKS="QM used for rating development: 465, 555, 565, 580, 604, 639, 641, 649, 664-677 to account for light fill that has occurred below stages 3.5 ft based upon trends of recent QMs. Negative shifting expected due to macrophyte growth." # //RATING EXPANSION="logarithmic" # //RATING BREAKPOINT1=3.580900E+00 # //RATING OFFSET1=1.150000E+00 OFFSET2=1.600000E+00 # //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)" # //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)" # //RATING_DATETIME BEGIN=20241205091500 BZONE=-07:00 END=-------------- EZONE=--- AGING=1 # //RATING_DATETIME COMMENT="End rating 14.0 and begin rating 15.0 during dam gate change. Change in Q is -2.3% (57.45 to 56.12 cfs). " # //SHIFT_PREV BEGIN="20260128114000" BZONE="-07:00" END="--------------" EZONE="---" # //SHIFT_PREV STAGE1="2.50" SHIFT1="-0.02" STAGE2="3.58" SHIFT2="-0.02" STAGE3="5.50" SHIFT3="0.00" # //SHIFT_PREV COMMENT="Based on Qm 683. Algae die-off during very cold months. Follows historic trend coming back to Rating. Very minimal shore ice (per usual)." # //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 1.39 -0.02 0.90 1.40 -0.02 1.00 1.41 -0.02 1.11 1.42 -0.02 1.23 1.43 -0.02 1.35 1.44 -0.02 1.49 1.45 -0.02 1.63 1.46 -0.02 1.77 1.47 -0.02 1.93 1.48 -0.02 2.09 1.49 -0.02 2.26 1.50 -0.02 2.44 1.51 -0.02 2.63 1.52 -0.02 2.82 1.53 -0.02 3.03 1.54 -0.02 3.24 1.55 -0.02 3.46 1.56 -0.02 3.69 1.57 -0.02 3.93 1.58 -0.02 4.17 1.59 -0.02 4.43 1.60 -0.02 4.69 1.61 -0.02 4.97 1.62 -0.02 5.25 1.63 -0.02 5.55 1.64 -0.02 5.85 1.65 -0.02 6.16 1.66 -0.02 6.48 1.67 -0.02 6.81 1.68 -0.02 7.16 1.69 -0.02 7.51 1.70 -0.02 7.87 1.71 -0.02 8.24 1.72 -0.02 8.62 1.73 -0.02 9.02 1.74 -0.02 9.42 1.75 -0.02 9.83 1.76 -0.02 10.26 1.77 -0.02 10.69 1.78 -0.02 11.14 1.79 -0.02 11.59 1.80 -0.02 12.06 1.81 -0.02 12.54 1.82 -0.02 13.03 1.83 -0.02 13.53 1.84 -0.02 14.04 1.85 -0.02 14.57 1.86 -0.02 15.10 1.87 -0.02 15.65 1.88 -0.02 16.21 1.89 -0.02 16.78 1.90 -0.02 17.36 1.91 -0.02 17.95 1.92 -0.02 18.56 1.93 -0.02 19.17 1.94 -0.02 19.80 1.95 -0.02 20.45 1.96 -0.02 21.10 1.97 -0.02 21.77 1.98 -0.02 22.44 1.99 -0.02 23.13 2.00 -0.02 23.84 2.01 -0.02 24.55 2.02 -0.02 25.28 2.03 -0.02 26.02 2.04 -0.02 26.78 2.05 -0.02 27.54 2.06 -0.02 28.32 2.07 -0.02 29.12 2.08 -0.02 29.92 2.09 -0.02 30.74 2.10 -0.02 31.57 2.11 -0.02 32.42 2.12 -0.02 33.28 2.13 -0.02 34.15 2.14 -0.02 35.04 2.15 -0.02 35.93 2.16 -0.02 36.85 2.17 -0.02 37.77 2.18 -0.02 38.71 2.19 -0.02 39.67 2.20 -0.02 40.64 2.21 -0.02 41.62 2.22 -0.02 42.61 2.23 -0.02 43.62 2.24 -0.02 44.65 2.25 -0.02 45.69 2.26 -0.02 46.74 2.27 -0.02 47.80 2.28 -0.02 48.88 2.29 -0.02 49.98 2.30 -0.02 51.09 2.31 -0.02 52.21 2.32 -0.02 53.35 2.33 -0.02 54.51 2.34 -0.02 55.67 2.35 -0.02 56.86 2.36 -0.02 58.06 2.37 -0.02 59.27 2.38 -0.02 60.50 2.39 -0.02 61.74 2.40 -0.02 63.00 2.41 -0.02 64.27 2.42 -0.02 65.56 2.43 -0.02 66.86 2.44 -0.02 68.18 2.45 -0.02 69.51 2.46 -0.02 70.86 2.47 -0.02 72.23 2.48 -0.02 73.61 2.49 -0.02 75.01 2.50 -0.02 76.42 2.51 -0.02 77.84 2.52 -0.02 79.29 2.53 -0.02 80.75 2.54 -0.02 82.22 2.55 -0.02 83.71 2.56 -0.02 85.22 2.57 -0.02 86.74 2.58 -0.02 88.28 2.59 -0.02 89.84 2.60 -0.02 91.41 2.61 -0.02 92.99 2.62 -0.02 94.60 2.63 -0.02 96.22 2.64 -0.02 97.85 2.65 -0.02 99.51 2.66 -0.02 101.18 2.67 -0.02 102.86 2.68 -0.02 104.57 2.69 -0.02 106.28 2.70 -0.02 108.02 2.71 -0.02 109.77 2.72 -0.02 111.54 2.73 -0.02 113.33 2.74 -0.02 115.13 2.75 -0.02 116.95 2.76 -0.02 118.79 2.77 -0.02 120.64 2.78 -0.02 122.52 2.79 -0.02 124.41 2.80 -0.02 126.31 2.81 -0.02 128.23 2.82 -0.02 130.17 2.83 -0.02 132.13 2.84 -0.02 134.11 2.85 -0.02 136.10 2.86 -0.02 138.11 2.87 -0.02 140.14 2.88 -0.02 142.18 2.89 -0.02 144.25 2.90 -0.02 146.33 2.91 -0.02 148.43 2.92 -0.02 150.54 2.93 -0.02 152.68 2.94 -0.02 154.83 2.95 -0.02 157.00 2.96 -0.02 159.19 2.97 -0.02 161.40 2.98 -0.02 163.62 2.99 -0.02 165.86 3.00 -0.02 168.12 3.01 -0.02 170.40 3.02 -0.02 172.70 3.03 -0.02 175.01 3.04 -0.02 177.35 3.05 -0.02 179.70 3.06 -0.02 182.07 3.07 -0.02 184.46 3.08 -0.02 186.87 3.09 -0.02 189.30 3.10 -0.02 191.74 3.11 -0.02 194.20 3.12 -0.02 196.69 3.13 -0.02 199.19 3.14 -0.02 201.71 3.15 -0.02 204.25 3.16 -0.02 206.81 3.17 -0.02 209.38 3.18 -0.02 211.98 3.19 -0.02 214.59 3.20 -0.02 217.23 3.21 -0.02 219.88 3.22 -0.02 222.56 3.23 -0.02 225.25 3.24 -0.02 227.96 3.25 -0.02 230.69 3.26 -0.02 233.44 3.27 -0.02 236.21 3.28 -0.02 239.00 3.29 -0.02 241.81 3.30 -0.02 244.63 3.31 -0.02 247.48 3.32 -0.02 250.35 3.33 -0.02 253.23 3.34 -0.02 256.14 3.35 -0.02 259.07 3.36 -0.02 262.01 3.37 -0.02 264.98 3.38 -0.02 267.96 3.39 -0.02 270.97 3.40 -0.02 274.00 3.41 -0.02 277.04 3.42 -0.02 280.11 3.43 -0.02 283.19 3.44 -0.02 286.30 3.45 -0.02 289.43 3.46 -0.02 292.57 3.47 -0.02 295.74 3.48 -0.02 298.93 3.49 -0.02 302.13 3.50 -0.02 305.36 3.51 -0.02 308.61 3.52 -0.02 311.88 3.53 -0.02 315.17 3.54 -0.02 318.48 3.55 -0.02 321.81 3.56 -0.02 325.16 3.57 -0.02 328.53 3.58 -0.02 331.92 * 3.59 -0.02 335.37 3.60 -0.02 338.84 3.61 -0.02 342.10 3.62 -0.02 345.36 3.63 -0.02 348.63 3.64 -0.02 351.91 3.65 -0.02 355.21 3.66 -0.02 358.53 3.67 -0.02 361.85 3.68 -0.02 365.20 3.69 -0.02 368.55 3.70 -0.02 371.93 3.71 -0.02 375.31 3.72 -0.02 378.71 3.73 -0.02 382.12 3.74 -0.02 385.55 3.75 -0.02 389.00 3.76 -0.02 392.45 3.77 -0.02 395.92 3.78 -0.02 399.41 3.79 -0.02 402.91 3.80 -0.02 406.42 3.81 -0.02 409.95 3.82 -0.02 413.49 3.83 -0.02 417.05 3.84 -0.02 420.62 3.85 -0.02 424.20 3.86 -0.02 427.80 3.87 -0.02 431.42 3.88 -0.02 435.04 3.89 -0.02 438.68 3.90 -0.02 442.34 3.91 -0.02 446.01 3.92 -0.02 449.69 3.93 -0.02 453.39 3.94 -0.02 457.10 3.95 -0.02 460.83 3.96 -0.02 464.57 3.97 -0.02 468.32 3.98 -0.02 472.09 3.99 -0.02 475.87 4.00 -0.02 479.67 4.01 -0.02 483.48 4.02 -0.02 487.30 4.03 -0.02 491.14 4.04 -0.02 494.99 4.05 -0.02 498.86 4.06 -0.01 502.74 4.07 -0.01 506.63 4.08 -0.01 510.54 4.09 -0.01 514.46 4.10 -0.01 518.40 4.11 -0.01 522.35 4.12 -0.01 526.31 4.13 -0.01 530.29 4.14 -0.01 534.28 4.15 -0.01 538.29 4.16 -0.01 542.31 4.17 -0.01 546.34 4.18 -0.01 550.39 4.19 -0.01 554.45 4.20 -0.01 558.53 4.21 -0.01 562.62 4.22 -0.01 566.72 4.23 -0.01 570.84 4.24 -0.01 574.97 4.25 -0.01 579.11 4.26 -0.01 583.27 4.27 -0.01 587.44 4.28 -0.01 591.63 4.29 -0.01 595.83 4.30 -0.01 600.05 4.31 -0.01 604.27 4.32 -0.01 608.52 4.33 -0.01 612.77 4.34 -0.01 617.04 4.35 -0.01 621.32 4.36 -0.01 625.62 4.37 -0.01 629.93 4.38 -0.01 634.26 4.39 -0.01 638.59 4.40 -0.01 642.95 4.41 -0.01 647.31 4.42 -0.01 651.69 4.43 -0.01 656.08 4.44 -0.01 660.49 4.45 -0.01 664.91 4.46 -0.01 669.35 4.47 -0.01 673.79 4.48 -0.01 678.26 4.49 -0.01 682.73 4.50 -0.01 687.22 4.51 -0.01 691.72 4.52 -0.01 696.24 4.53 -0.01 700.77 4.54 -0.01 705.32 4.55 -0.01 709.87 4.56 -0.01 714.44 4.57 -0.01 719.03 4.58 -0.01 723.63 4.59 -0.01 728.24 4.60 -0.01 732.87 4.61 -0.01 737.51 4.62 -0.01 742.16 4.63 -0.01 746.83 4.64 -0.01 751.51 4.65 -0.01 756.20 4.66 -0.01 760.91 4.67 -0.01 765.63 4.68 -0.01 770.36 4.69 -0.01 775.11 4.70 -0.01 779.87 4.71 -0.01 784.65 4.72 -0.01 789.44 4.73 -0.01 794.24 4.74 -0.01 799.06 4.75 -0.01 803.89 4.76 -0.01 808.73 4.77 -0.01 813.59 4.78 -0.01 818.46 4.79 -0.01 823.34 4.80 -0.01 828.24 4.81 -0.01 833.15 4.82 -0.01 838.08 4.83 -0.01 843.01 4.84 -0.01 847.97 4.85 -0.01 852.93 4.86 -0.01 857.91 4.87 -0.01 862.90 4.88 -0.01 867.91 4.89 -0.01 872.93 4.90 -0.01 877.96 4.91 -0.01 883.00 4.92 -0.01 888.06 4.93 -0.01 893.14 4.94 -0.01 898.22 4.95 -0.01 903.32 4.96 -0.01 908.44 4.97 -0.01 913.56 4.98 -0.01 918.70 4.99 -0.01 923.86 5.00 -0.01 929.02 5.01 -0.01 934.20 5.02 -0.01 939.40 5.03 0.00 944.60 5.04 0.00 949.82 5.05 0.00 955.06 5.06 0.00 960.31 5.07 0.00 965.57 5.08 0.00 970.84 5.09 0.00 976.13 5.10 0.00 981.43 5.11 0.00 986.74 5.12 0.00 992.07 5.13 0.00 997.41 5.14 0.00 1002.77 5.15 0.00 1008.13 5.16 0.00 1013.51 5.17 0.00 1018.91 5.18 0.00 1024.32 5.19 0.00 1029.74 5.20 0.00 1035.17 5.21 0.00 1040.62 5.22 0.00 1046.08 5.23 0.00 1051.55 5.24 0.00 1057.04 5.25 0.00 1062.54 5.26 0.00 1068.05 5.27 0.00 1073.58 5.28 0.00 1079.12 5.29 0.00 1084.68 5.30 0.00 1090.24 5.31 0.00 1095.82 5.32 0.00 1101.42 5.33 0.00 1107.02 5.34 0.00 1112.64 5.35 0.00 1118.28 5.36 0.00 1123.92 5.37 0.00 1129.58 5.38 0.00 1135.26 5.39 0.00 1140.94 5.40 0.00 1146.64 5.41 0.00 1152.36 5.42 0.00 1158.08 5.43 0.00 1163.82 5.44 0.00 1169.57 5.45 0.00 1175.34 5.46 0.00 1181.12 5.47 0.00 1186.91 5.48 0.00 1192.71 5.49 0.00 1198.53 5.50 0.00 1204.36 5.51 0.00 1210.15 5.52 0.00 1215.95 5.53 0.00 1221.76 5.54 0.00 1227.58 5.55 0.00 1233.42 5.56 0.00 1239.26 5.57 0.00 1245.13 5.58 0.00 1251.00 5.59 0.00 1256.89 5.60 0.00 1262.79 5.61 0.00 1268.70 5.62 0.00 1274.63 5.63 0.00 1280.57 5.64 0.00 1286.52 5.65 0.00 1292.48 5.66 0.00 1298.46 5.67 0.00 1304.45 5.68 0.00 1310.45 5.69 0.00 1316.47 5.70 0.00 1322.50 5.71 0.00 1328.54 5.72 0.00 1334.59 5.73 0.00 1340.66 5.74 0.00 1346.74 5.75 0.00 1352.83 5.76 0.00 1358.94 5.77 0.00 1365.06 5.78 0.00 1371.19 5.79 0.00 1377.33 5.80 0.00 1383.49 5.81 0.00 1389.66 5.82 0.00 1395.84 5.83 0.00 1402.04 5.84 0.00 1408.24 5.85 0.00 1414.47 5.86 0.00 1420.70 5.87 0.00 1426.95 5.88 0.00 1433.20 5.89 0.00 1439.48 5.90 0.00 1445.76 5.91 0.00 1452.06 5.92 0.00 1458.37 5.93 0.00 1464.69 5.94 0.00 1471.03 5.95 0.00 1477.37 5.96 0.00 1483.73 5.97 0.00 1490.11 5.98 0.00 1496.49 5.99 0.00 1502.89 6.00 0.00 1509.30 6.01 0.00 1515.73 6.02 0.00 1522.17 6.03 0.00 1528.62 6.04 0.00 1535.08 6.05 0.00 1541.55 6.06 0.00 1548.04 6.07 0.00 1554.54 6.08 0.00 1561.06 6.09 0.00 1567.58 6.10 0.00 1574.12 6.11 0.00 1580.67 6.12 0.00 1587.23 6.13 0.00 1593.81 6.14 0.00 1600.40 6.15 0.00 1607.00 6.16 0.00 1613.62 6.17 0.00 1620.24 6.18 0.00 1626.88 6.19 0.00 1633.54 6.20 0.00 1640.20 6.21 0.00 1646.88 6.22 0.00 1653.57 6.23 0.00 1660.27 6.24 0.00 1666.99 6.25 0.00 1673.72 6.26 0.00 1680.46 6.27 0.00 1687.21 6.28 0.00 1693.98 6.29 0.00 1700.76 6.30 0.00 1707.55 6.31 0.00 1714.35 6.32 0.00 1721.17 6.33 0.00 1728.00 6.34 0.00 1734.84 6.35 0.00 1741.69 6.36 0.00 1748.56 6.37 0.00 1755.44 6.38 0.00 1762.33 6.39 0.00 1769.23 6.40 0.00 1776.15 6.41 0.00 1783.08 6.42 0.00 1790.02 6.43 0.00 1796.98 6.44 0.00 1803.95 6.45 0.00 1810.93 6.46 0.00 1817.92 6.47 0.00 1824.92 6.48 0.00 1831.94 6.49 0.00 1838.97 6.50 0.00 1846.01 6.51 0.00 1853.07 6.52 0.00 1860.14 6.53 0.00 1867.22 6.54 0.00 1874.31 6.55 0.00 1881.41 6.56 0.00 1888.53 6.57 0.00 1895.66 6.58 0.00 1902.80 6.59 0.00 1909.96 6.60 0.00 1917.13 6.61 0.00 1924.31 6.62 0.00 1931.50 6.63 0.00 1938.70 6.64 0.00 1945.92 6.65 0.00 1953.15 6.66 0.00 1960.40 6.67 0.00 1967.65 6.68 0.00 1974.92 6.69 0.00 1982.20 6.70 0.00 1989.49 6.71 0.00 1996.80 6.72 0.00 2004.11 6.73 0.00 2011.44 6.74 0.00 2018.79 6.75 0.00 2026.14 6.76 0.00 2033.51 6.77 0.00 2040.89 6.78 0.00 2048.28 6.79 0.00 2055.68 6.80 0.00 2063.10 6.81 0.00 2070.53 6.82 0.00 2077.97 6.83 0.00 2085.43 6.84 0.00 2092.89 6.85 0.00 2100.37 6.86 0.00 2107.86 6.87 0.00 2115.37 6.88 0.00 2122.88 6.89 0.00 2130.41 6.90 0.00 2137.95 6.91 0.00 2145.51 6.92 0.00 2153.07 6.93 0.00 2160.65 6.94 0.00 2168.24 6.95 0.00 2175.85 6.96 0.00 2183.46 6.97 0.00 2191.09 6.98 0.00 2198.73 6.99 0.00 2206.38 7.00 0.00 2214.05 7.01 0.00 2221.73 7.02 0.00 2229.42 7.03 0.00 2237.12 7.04 0.00 2244.83 7.05 0.00 2252.56 7.06 0.00 2260.30 7.07 0.00 2268.05 7.08 0.00 2275.82 7.09 0.00 2283.59 7.10 0.00 2291.38 7.11 0.00 2299.18 7.12 0.00 2307.00 7.13 0.00 2314.82 7.14 0.00 2322.66 7.15 0.00 2330.51 7.16 0.00 2338.37 7.17 0.00 2346.25 7.18 0.00 2354.13 7.19 0.00 2362.03 7.20 0.00 2369.95 7.21 0.00 2377.87 7.22 0.00 2385.81 7.23 0.00 2393.76 7.24 0.00 2401.72 7.25 0.00 2409.69 7.26 0.00 2417.68 7.27 0.00 2425.68 7.28 0.00 2433.69 7.29 0.00 2441.71 7.30 0.00 2449.74 7.31 0.00 2457.79 7.32 0.00 2465.85 7.33 0.00 2473.92 7.34 0.00 2482.01 7.35 0.00 2490.10 7.36 0.00 2498.21 7.37 0.00 2506.33 7.38 0.00 2514.47 7.39 0.00 2522.61 7.40 0.00 2530.77 7.41 0.00 2538.94 7.42 0.00 2547.12 7.43 0.00 2555.32 7.44 0.00 2563.52 7.45 0.00 2571.74 7.46 0.00 2579.98 7.47 0.00 2588.22 7.48 0.00 2596.48 7.49 0.00 2604.74 7.50 0.00 2613.02 7.51 0.00 2621.32 7.52 0.00 2629.62 7.53 0.00 2637.94 7.54 0.00 2646.27 7.55 0.00 2654.61 7.56 0.00 2662.96 7.57 0.00 2671.33 7.58 0.00 2679.71 7.59 0.00 2688.10 7.60 0.00 2696.50 7.61 0.00 2704.91 7.62 0.00 2713.34 7.63 0.00 2721.78 7.64 0.00 2730.23 7.65 0.00 2738.70 7.66 0.00 2747.17 7.67 0.00 2755.66 7.68 0.00 2764.16 7.69 0.00 2772.67 7.70 0.00 2781.20 7.71 0.00 2789.73 7.72 0.00 2798.28 7.73 0.00 2806.84 7.74 0.00 2815.42 7.75 0.00 2824.00 7.76 0.00 2832.60 7.77 0.00 2841.21 7.78 0.00 2849.83 7.79 0.00 2858.46 7.80 0.00 2867.11 7.81 0.00 2875.77 7.82 0.00 2884.44 7.83 0.00 2893.12 *