# //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: 2026-08-06 21:10:02
# //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="06123030       " TIME_ZONE="MST" DST_FLAG=Y
# //STATION NAME="Musselshell River ab Mud Cr nr Shawmut MT"
# //LABEL="Discharge (ft^3/s)"
# //PARAMETER CODE="00060"
# //RATING SHIFTED="20260806211002 MST"
# //RATING ID="11.0 " TYPE="STGQ" NAME="stage-discharge" AGING=????
# //RATING REMARKS="7/6/26 EEE revised Rating no. 11.0. Reviewed rating 7/15/26. Ran through the reversal spreadsheet tool and no reversals found.  The lower end of rating subject to minor fill.  Recent GZF measurements of near 2.00 ft and above used as approximation of lower offset. Slope of lower segment is 2.03 and indicative of section control. Measurements noted as section or combined control upto 3.50 ft. More weight given for more recent measurements in 2025-2026 WY's. A break point at 4.32 ft (offset =+0.50 ft) where recent higher Meas. 194-196 are used to derive the upper portion splitting these measurements. Rating only extended to 7.90 ft and 3,120 cfs. Channel upstream and approach changed after 2011 flooding where flows bypassed on right bank upstream of gage. Now higher stages are contained where some road overflow occurred before it occurs now at a higher stage."
# //RATING EXPANSION="logarithmic"
# //RATING BREAKPOINT1=4.320310E+00
# //RATING OFFSET1=2.000000E+00 OFFSET2=5.000000E-01
# //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)"
# //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)"
# //RATING_DATETIME BEGIN=20250331100000 BZONE=-07:00 END=-------------- EZONE=--- AGING=1
# //SHIFT_PREV BEGIN="20260806092540" BZONE="-07:00" END="--------------" EZONE="---"
# //SHIFT_PREV STAGE1="3.50" SHIFT1="-0.10" STAGE2="4.32" SHIFT2="0.00"
# //SHIFT_PREV COMMENT="Continue backwater shift; Meas. 213; light algae."
# //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
2.11	-0.10	0.00	
2.12	-0.10	0.02	
2.13	-0.10	0.05	
2.14	-0.10	0.08	
2.15	-0.10	0.13	
2.16	-0.10	0.19	
2.17	-0.10	0.25	
2.18	-0.10	0.33	
2.19	-0.10	0.42	
2.20	-0.10	0.52	
2.21	-0.10	0.63	
2.22	-0.10	0.76	
2.23	-0.10	0.89	
2.24	-0.10	1.03	
2.25	-0.10	1.19	
2.26	-0.10	1.35	
2.27	-0.10	1.53	
2.28	-0.10	1.72	
2.29	-0.10	1.92	
2.30	-0.10	2.13	
2.31	-0.10	2.35	
2.32	-0.10	2.58	
2.33	-0.10	2.83	
2.34	-0.10	3.08	
2.35	-0.10	3.35	
2.36	-0.10	3.62	
2.37	-0.10	3.91	
2.38	-0.10	4.21	
2.39	-0.10	4.52	
2.40	-0.10	4.84	
2.41	-0.10	5.17	
2.42	-0.10	5.52	
2.43	-0.10	5.87	
2.44	-0.10	6.24	
2.45	-0.10	6.62	
2.46	-0.10	7.00	
2.47	-0.10	7.40	
2.48	-0.10	7.82	
2.49	-0.10	8.24	
2.50	-0.10	8.67	
2.51	-0.10	9.12	
2.52	-0.10	9.57	
2.53	-0.10	10.04	
2.54	-0.10	10.52	
2.55	-0.10	11.01	
2.56	-0.10	11.51	
2.57	-0.10	12.02	
2.58	-0.10	12.55	
2.59	-0.10	13.08	
2.60	-0.10	13.63	
2.61	-0.10	14.19	
2.62	-0.10	14.76	
2.63	-0.10	15.34	
2.64	-0.10	15.93	
2.65	-0.10	16.53	
2.66	-0.10	17.15	
2.67	-0.10	17.77	
2.68	-0.10	18.41	
2.69	-0.10	19.06	
2.70	-0.10	19.72	
2.71	-0.10	20.39	
2.72	-0.10	21.07	
2.73	-0.10	21.77	
2.74	-0.10	22.47	
2.75	-0.10	23.19	
2.76	-0.10	23.92	
2.77	-0.10	24.66	
2.78	-0.10	25.41	
2.79	-0.10	26.17	
2.80	-0.10	26.95	
2.81	-0.10	27.73	
2.82	-0.10	28.53	
2.83	-0.10	29.34	
2.84	-0.10	30.16	
2.85	-0.10	30.99	
2.86	-0.10	31.83	
2.87	-0.10	32.69	
2.88	-0.10	33.55	
2.89	-0.10	34.43	
2.90	-0.10	35.32	
2.91	-0.10	36.22	
2.92	-0.10	37.13	
2.93	-0.10	38.05	
2.94	-0.10	38.99	
2.95	-0.10	39.93	
2.96	-0.10	40.89	
2.97	-0.10	41.86	
2.98	-0.10	42.84	
2.99	-0.10	43.83	
3.00	-0.10	44.84	
3.01	-0.10	45.85	
3.02	-0.10	46.88	
3.03	-0.10	47.92	
3.04	-0.10	48.97	
3.05	-0.10	50.03	
3.06	-0.10	51.10	
3.07	-0.10	52.18	
3.08	-0.10	53.28	
3.09	-0.10	54.39	
3.10	-0.10	55.51	
3.11	-0.10	56.64	
3.12	-0.10	57.78	
3.13	-0.10	58.93	
3.14	-0.10	60.10	
3.15	-0.10	61.27	
3.16	-0.10	62.46	
3.17	-0.10	63.66	
3.18	-0.10	64.87	
3.19	-0.10	66.10	
3.20	-0.10	67.33	
3.21	-0.10	68.58	
3.22	-0.10	69.83	
3.23	-0.10	71.10	
3.24	-0.10	72.38	
3.25	-0.10	73.67	
3.26	-0.10	74.98	
3.27	-0.10	76.29	
3.28	-0.10	77.62	
3.29	-0.10	78.96	
3.30	-0.10	80.31	
3.31	-0.10	81.67	
3.32	-0.10	83.04	
3.33	-0.10	84.43	
3.34	-0.10	85.83	
3.35	-0.10	87.23	
3.36	-0.10	88.65	
3.37	-0.10	90.09	
3.38	-0.10	91.53	
3.39	-0.10	92.98	
3.40	-0.10	94.45	
3.41	-0.10	95.93	
3.42	-0.10	97.42	
3.43	-0.10	98.92	
3.44	-0.10	100.43	
3.45	-0.10	101.95	
3.46	-0.10	103.49	
3.47	-0.10	105.04	
3.48	-0.10	106.60	
3.49	-0.10	108.17	
3.50	-0.10	109.75	
3.51	-0.10	111.54	
3.52	-0.10	113.34	
3.53	-0.10	115.16	
3.54	-0.10	117.00	
3.55	-0.09	118.84	
3.56	-0.09	120.71	
3.57	-0.09	122.58	
3.58	-0.09	124.48	
3.59	-0.09	126.38	
3.60	-0.09	128.30	
3.61	-0.09	130.24	
3.62	-0.09	132.19	
3.63	-0.08	134.16	
3.64	-0.08	136.14	
3.65	-0.08	138.13	
3.66	-0.08	140.14	
3.67	-0.08	142.16	
3.68	-0.08	144.20	
3.69	-0.08	146.26	
3.70	-0.08	148.33	
3.71	-0.07	150.41	
3.72	-0.07	152.51	
3.73	-0.07	154.62	
3.74	-0.07	156.75	
3.75	-0.07	158.89	
3.76	-0.07	161.04	
3.77	-0.07	163.22	
3.78	-0.07	165.40	
3.79	-0.06	167.60	
3.80	-0.06	169.82	
3.81	-0.06	172.05	
3.82	-0.06	174.29	
3.83	-0.06	176.55	
3.84	-0.06	178.83	
3.85	-0.06	181.12	
3.86	-0.06	183.42	
3.87	-0.05	185.74	
3.88	-0.05	188.07	
3.89	-0.05	190.42	
3.90	-0.05	192.78	
3.91	-0.05	195.16	
3.92	-0.05	197.55	
3.93	-0.05	199.96	
3.94	-0.05	202.38	
3.95	-0.05	204.82	
3.96	-0.04	207.27	
3.97	-0.04	209.74	
3.98	-0.04	212.22	
3.99	-0.04	214.71	
4.00	-0.04	217.23	
4.01	-0.04	219.75	
4.02	-0.04	222.29	
4.03	-0.04	224.85	
4.04	-0.03	227.42	
4.05	-0.03	230.00	
4.06	-0.03	232.60	
4.07	-0.03	235.21	
4.08	-0.03	237.84	
4.09	-0.03	240.49	
4.10	-0.03	243.15	
4.11	-0.03	245.82	
4.12	-0.02	248.51	
4.13	-0.02	251.21	
4.14	-0.02	253.93	
4.15	-0.02	256.66	
4.16	-0.02	259.41	
4.17	-0.02	262.17	
4.18	-0.02	264.95	
4.19	-0.02	267.74	
4.20	-0.01	270.55	
4.21	-0.01	273.37	
4.22	-0.01	276.20	
4.23	-0.01	279.06	*
4.24	-0.01	281.95	
4.25	-0.01	284.96	
4.26	-0.01	287.99	
4.27	-0.01	291.03	
4.28	0.00	294.09	
4.29	0.00	297.17	
4.30	0.00	300.26	
4.31	0.00	303.38	
4.32	0.00	306.50	*
4.33	0.00	309.25	
4.34	0.00	312.01	
4.35	0.00	314.78	
4.36	0.00	317.58	
4.37	0.00	320.39	
4.38	0.00	323.22	
4.39	0.00	326.07	
4.40	0.00	328.93	
4.41	0.00	331.82	*
4.42	0.00	334.76	
4.43	0.00	337.76	
4.44	0.00	340.78	
4.45	0.00	343.82	
4.46	0.00	346.87	
4.47	0.00	349.95	
4.48	0.00	353.05	
4.49	0.00	356.16	
4.50	0.00	359.30	
4.51	0.00	362.45	
4.52	0.00	365.62	
4.53	0.00	368.82	
4.54	0.00	372.04	*
4.55	0.00	375.29	
4.56	0.00	378.55	
4.57	0.00	381.84	
4.58	0.00	385.15	
4.59	0.00	388.48	
4.60	0.00	391.83	
4.61	0.00	395.20	
4.62	0.00	398.59	
4.63	0.00	402.01	
4.64	0.00	405.44	
4.65	0.00	408.89	
4.66	0.00	412.37	
4.67	0.00	415.86	
4.68	0.00	419.38	
4.69	0.00	422.92	
4.70	0.00	426.48	
4.71	0.00	430.06	
4.72	0.00	433.66	
4.73	0.00	437.29	
4.74	0.00	440.94	
4.75	0.00	444.60	
4.76	0.00	448.29	
4.77	0.00	452.00	
4.78	0.00	455.74	
4.79	0.00	459.49	
4.80	0.00	463.27	
4.81	0.00	467.07	
4.82	0.00	470.89	
4.83	0.00	474.73	
4.84	0.00	478.60	
4.85	0.00	482.49	
4.86	0.00	486.40	
4.87	0.00	490.34	
4.88	0.00	494.29	
4.89	0.00	498.27	
4.90	0.00	502.28	
4.91	0.00	506.30	
4.92	0.00	510.35	
4.93	0.00	514.42	
4.94	0.00	518.52	
4.95	0.00	522.63	
4.96	0.00	526.78	
4.97	0.00	530.94	
4.98	0.00	535.13	
4.99	0.00	539.34	
5.00	0.00	543.58	
5.01	0.00	547.84	
5.02	0.00	552.12	
5.03	0.00	556.43	
5.04	0.00	560.76	
5.05	0.00	565.11	
5.06	0.00	569.49	
5.07	0.00	573.90	
5.08	0.00	578.32	
5.09	0.00	582.78	
5.10	0.00	587.25	
5.11	0.00	591.75	
5.12	0.00	596.28	
5.13	0.00	600.83	
5.14	0.00	605.41	
5.15	0.00	610.01	
5.16	0.00	614.63	
5.17	0.00	619.28	
5.18	0.00	623.96	
5.19	0.00	628.66	
5.20	0.00	633.39	
5.21	0.00	638.14	
5.22	0.00	642.91	
5.23	0.00	647.72	
5.24	0.00	652.54	
5.25	0.00	657.40	
5.26	0.00	662.28	
5.27	0.00	667.18	
5.28	0.00	672.11	
5.29	0.00	677.07	
5.30	0.00	682.05	
5.31	0.00	687.06	
5.32	0.00	692.10	
5.33	0.00	697.16	
5.34	0.00	702.25	
5.35	0.00	707.37	
5.36	0.00	712.51	
5.37	0.00	717.68	
5.38	0.00	722.87	
5.39	0.00	728.09	
5.40	0.00	733.34	
5.41	0.00	738.62	
5.42	0.00	743.92	
5.43	0.00	749.25	
5.44	0.00	754.61	
5.45	0.00	760.00	
5.46	0.00	765.41	
5.47	0.00	770.85	
5.48	0.00	776.32	
5.49	0.00	781.81	
5.50	0.00	787.34	
5.51	0.00	792.89	
5.52	0.00	798.47	
5.53	0.00	804.07	
5.54	0.00	809.71	
5.55	0.00	815.37	
5.56	0.00	821.06	
5.57	0.00	826.78	
5.58	0.00	832.53	
5.59	0.00	838.31	
5.60	0.00	844.11	
5.61	0.00	849.95	
5.62	0.00	855.81	
5.63	0.00	861.70	
5.64	0.00	867.62	
5.65	0.00	873.57	
5.66	0.00	879.55	
5.67	0.00	885.56	
5.68	0.00	891.60	
5.69	0.00	897.67	
5.70	0.00	903.76	
5.71	0.00	909.89	
5.72	0.00	916.05	
5.73	0.00	922.23	
5.74	0.00	928.45	
5.75	0.00	934.69	
5.76	0.00	940.97	
5.77	0.00	947.27	
5.78	0.00	953.61	
5.79	0.00	959.98	
5.80	0.00	966.37	
5.81	0.00	972.80	
5.82	0.00	979.26	
5.83	0.00	985.74	
5.84	0.00	992.26	
5.85	0.00	998.81	
5.86	0.00	1005.39	
5.87	0.00	1012.00	
5.88	0.00	1018.65	
5.89	0.00	1025.32	
5.90	0.00	1032.02	
5.91	0.00	1038.76	
5.92	0.00	1045.53	
5.93	0.00	1052.33	
5.94	0.00	1059.16	
5.95	0.00	1066.02	
5.96	0.00	1072.91	
5.97	0.00	1079.84	
5.98	0.00	1086.80	
5.99	0.00	1093.78	
6.00	0.00	1100.81	
6.01	0.00	1107.86	
6.02	0.00	1114.95	
6.03	0.00	1122.07	
6.04	0.00	1129.22	
6.05	0.00	1136.40	
6.06	0.00	1143.62	
6.07	0.00	1150.87	
6.08	0.00	1158.15	
6.09	0.00	1165.46	
6.10	0.00	1172.81	
6.11	0.00	1180.19	
6.12	0.00	1187.60	
6.13	0.00	1195.05	
6.14	0.00	1202.53	
6.15	0.00	1210.05	
6.16	0.00	1217.59	
6.17	0.00	1225.18	
6.18	0.00	1232.79	
6.19	0.00	1240.44	
6.20	0.00	1248.12	
6.21	0.00	1255.84	
6.22	0.00	1263.59	
6.23	0.00	1271.37	
6.24	0.00	1279.19	
6.25	0.00	1287.05	
6.26	0.00	1294.94	
6.27	0.00	1302.86	
6.28	0.00	1310.82	
6.29	0.00	1318.81	
6.30	0.00	1326.83	
6.31	0.00	1334.90	
6.32	0.00	1342.99	
6.33	0.00	1351.12	
6.34	0.00	1359.29	
6.35	0.00	1367.49	
6.36	0.00	1375.73	
6.37	0.00	1384.00	
6.38	0.00	1392.31	
6.39	0.00	1400.66	
6.40	0.00	1409.04	
6.41	0.00	1417.45	
6.42	0.00	1425.90	
6.43	0.00	1434.39	
6.44	0.00	1442.91	
6.45	0.00	1451.47	
6.46	0.00	1460.07	
6.47	0.00	1468.70	
6.48	0.00	1477.37	
6.49	0.00	1486.08	
6.50	0.00	1494.82	
6.51	0.00	1503.60	
6.52	0.00	1512.41	
6.53	0.00	1521.27	
6.54	0.00	1530.16	
6.55	0.00	1539.08	
6.56	0.00	1548.05	
6.57	0.00	1557.05	
6.58	0.00	1566.09	
6.59	0.00	1575.16	
6.60	0.00	1584.28	
6.61	0.00	1593.43	
6.62	0.00	1602.62	
6.63	0.00	1611.84	
6.64	0.00	1621.11	
6.65	0.00	1630.41	
6.66	0.00	1639.75	
6.67	0.00	1649.13	
6.68	0.00	1658.55	
6.69	0.00	1668.01	
6.70	0.00	1677.50	
6.71	0.00	1687.04	
6.72	0.00	1696.61	
6.73	0.00	1706.22	
6.74	0.00	1715.87	
6.75	0.00	1725.56	
6.76	0.00	1735.28	
6.77	0.00	1745.05	
6.78	0.00	1754.86	
6.79	0.00	1764.70	
6.80	0.00	1774.59	
6.81	0.00	1784.51	
6.82	0.00	1794.48	
6.83	0.00	1804.48	
6.84	0.00	1814.53	
6.85	0.00	1824.61	
6.86	0.00	1834.73	
6.87	0.00	1844.90	
6.88	0.00	1855.10	
6.89	0.00	1865.35	
6.90	0.00	1875.63	
6.91	0.00	1885.96	
6.92	0.00	1896.32	
6.93	0.00	1906.73	
6.94	0.00	1917.18	
6.95	0.00	1927.67	
6.96	0.00	1938.20	
6.97	0.00	1948.77	
6.98	0.00	1959.38	
6.99	0.00	1970.03	
7.00	0.00	1980.73	
7.01	0.00	1991.46	
7.02	0.00	2002.24	
7.03	0.00	2013.06	
7.04	0.00	2023.92	
7.05	0.00	2034.82	
7.06	0.00	2045.77	
7.07	0.00	2056.76	
7.08	0.00	2067.78	
7.09	0.00	2078.86	
7.10	0.00	2089.97	
7.11	0.00	2101.13	
7.12	0.00	2112.32	
7.13	0.00	2123.57	
7.14	0.00	2134.85	
7.15	0.00	2146.18	
7.16	0.00	2157.55	
7.17	0.00	2168.96	
7.18	0.00	2180.42	
7.19	0.00	2191.92	
7.20	0.00	2203.46	
7.21	0.00	2215.04	
7.22	0.00	2226.67	
7.23	0.00	2238.35	
7.24	0.00	2250.06	
7.25	0.00	2261.82	
7.26	0.00	2273.63	
7.27	0.00	2285.48	
7.28	0.00	2297.37	
7.29	0.00	2309.31	
7.30	0.00	2321.29	
7.31	0.00	2333.32	
7.32	0.00	2345.39	
7.33	0.00	2357.50	
7.34	0.00	2369.66	
7.35	0.00	2381.86	
7.36	0.00	2394.11	
7.37	0.00	2406.41	
7.38	0.00	2418.75	
7.39	0.00	2431.13	
7.40	0.00	2443.56	
7.41	0.00	2456.04	
7.42	0.00	2468.56	
7.43	0.00	2481.13	
7.44	0.00	2493.74	
7.45	0.00	2506.40	
7.46	0.00	2519.10	
7.47	0.00	2531.85	
7.48	0.00	2544.65	
7.49	0.00	2557.49	
7.50	0.00	2570.38	
7.51	0.00	2583.31	
7.52	0.00	2596.30	
7.53	0.00	2609.32	
7.54	0.00	2622.40	
7.55	0.00	2635.52	
7.56	0.00	2648.69	
7.57	0.00	2661.90	
7.58	0.00	2675.17	
7.59	0.00	2688.48	
7.60	0.00	2701.84	
7.61	0.00	2715.24	
7.62	0.00	2728.69	
7.63	0.00	2742.19	
7.64	0.00	2755.74	
7.65	0.00	2769.34	
7.66	0.00	2782.98	
7.67	0.00	2796.67	
7.68	0.00	2810.41	
7.69	0.00	2824.20	
7.70	0.00	2838.03	
7.71	0.00	2851.92	
7.72	0.00	2865.85	
7.73	0.00	2879.83	
7.74	0.00	2893.86	
7.75	0.00	2907.94	
7.76	0.00	2922.07	
7.77	0.00	2936.25	
7.78	0.00	2950.48	
7.79	0.00	2964.75	
7.80	0.00	2979.08	
7.81	0.00	2993.45	
7.82	0.00	3007.88	
7.83	0.00	3022.35	
7.84	0.00	3036.87	
7.85	0.00	3051.45	
7.86	0.00	3066.07	
7.87	0.00	3080.75	
7.88	0.00	3095.47	
7.89	0.00	3110.24