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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 12347360 Bitterroot River at Hamilton MT
Ravalli County, Montana
Hydrologic Unit Code 17010205
Latitude  46°14'51", Longitude 114°10'36" NAD27
Gage datum 3,540 feet above NGVD29
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Meas.
Number		   Date       Time Time
Datum		 Measurement
Used?		   Who Measuring
Agency		 Stream
flow
(ft3/s)		 Gage
Height
(ft)		 GH
Change
(ft)		 Meas.
Duration
(hr)		 Meas.
Rated		   Control Flow
Adjust.
Code 		 Channel
Number		 Channel
Name		 Meas.
type 		 Stream
flow
method 		 Velocity
method 		 Channel
flow
(ft3/s)		 Channel
width
(ft)		 Channel
area
(ft2)		 Channel
vel.
(ft/s)		 Channel
stability 		 Channel
material 		 Channel
evenness 		 Long.
vel.
desc. 		 Horz.
vel.
desc. 		 Vert.
vel.
desc. 		 Channel
loc.
code 		 Channel
loc.
dist.(ft)
272016-08-17 11:16:30MDTYesKLS/APUSGS3985.050.000.70FairDebrisLightNONE1MAINWADEQSCMMVADV3981161712.33FIRMCBLSEVENunknEVENUNFMDNST100.00
262007-10-16 16:30MDTYesJRFUSGS3874.950.001.20ExcellentClearNONE1Imported Channel 1WADEunspeunkno3871262951.31UNSPUNSPUNSPunknUNSPUNSPUNSP
252007-08-22 09:35MDTYesJRFUSGS3154.710.000.70GoodClearNONE1Imported Channel 1WADEunspeunkno3151302091.51UNSPUNSPUNSPunknUNSPUNSPUNSP
242007-06-20 16:35MDTYesJRFUSGS18707.08-0.031.70GoodClearNONE1Imported Channel 1CRANunspeunkno18701496682.80UNSPUNSPUNSPunknUNSPUNSPUNSP
232006-07-18 11:26MDTYesJRFUSGS5045.130.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno5041422432.07UNSPUNSPUNSPunknUNSPUNSPUNSP
222004-07-27 11:49MDTYesJRFUSGS5145.200.001.00GoodClearNONE1Imported Channel 1WADEunspeunkno5141412601.98UNSPUNSPUNSPunknUNSPUNSPUNSP
212003-09-15 12:42MDTYesJRFUSGS3894.960.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno3891382261.72UNSPUNSPUNSPunknUNSPUNSPUNSP
202003-08-06 07:49MDTYesJRFUSGS5765.360.010.90GoodClearNONE1Imported Channel 1WADEunspeunkno5761492872.01UNSPUNSPUNSPunknUNSPUNSPUNSP
192003-07-09 11:45MDTYesJRFUSGS11806.26-0.052.00FairClearNONE1Imported Channel 1CRANunspeunkno11801487061.67UNSPUNSPUNSPunknUNSPUNSPUNSP
182003-05-28 17:30MDTYesJRFUSGS1160011.880.001.80GoodClearNONE1Imported Channel 1CRANunspeunkno1160018815607.44UNSPUNSPUNSPunknUNSPUNSPUNSP
172002-08-19 12:45MDTYesJRFUSGS4955.170.001.00GoodClearNONE1Imported Channel 1WADEunspeunkno4951422681.85UNSPUNSPUNSPunknUNSPUNSPUNSP
162002-07-18 07:30MDTYesJRFUSGS10906.160.001.70GoodClearNONE1Imported Channel 1CRANunspeunkno10901465571.96UNSPUNSPUNSPunknUNSPUNSPUNSP
152002-06-05 12:45MDTYesJRFUSGS684010.220.011.80GoodClearNONE1Imported Channel 1CRANunspeunkno684018111805.80UNSPUNSPUNSPunknUNSPUNSPUNSP
142002-04-02 15:45MSTYesJRFUSGS5165.230.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno5161452512.06UNSPUNSPUNSPunknUNSPUNSPUNSP
131998-09-17 12:05MDTYesCLC/SMLUSGS3705.100.000.80GoodClearNONE1Imported Channel 1WADEunspeunkno3701202531.46UNSPUNSPUNSPunknUNSPUNSPUNSP
121998-08-26 11:55MDTYesPLKUSGS5851.78-0.010.50FairClearNONE1Imported Channel 1WADEunspeunkno5851283291.78UNSPUNSPUNSPunknUNSPUNSPUNSP
111998-06-11 08:10MDTYesCLC/TLHUSGS35208.360.001.30GoodClearNONE1Imported Channel 1CRANunspeunkno35201629845.38UNSPUNSPUNSPunknUNSPUNSPUNSP
101998-05-27 14:05MDTYesTLH/CLCUSGS64009.900.001.50GoodClearNONE1Imported Channel 1CRANunspeunkno640017812805.00UNSPUNSPUNSPunknUNSPUNSPUNSP
91998-05-06 14:35MDTYesTLH/CLCUSGS54209.350.001.50FairClearNONE1Imported Channel 1CRANunspeunkno542017011904.55UNSPUNSPUNSPunknUNSPUNSPUNSP
81998-04-28 14:40MDTYesTLH/CLCUSGS19607.17-0.011.30GoodClearNONE1Imported Channel 1CRANunspeunkno19601508.272.37UNSPUNSPUNSPunknUNSPUNSPUNSP
71998-04-16 13:00MDTYesPLKUSGS8465.96-0.021.50FairClearNONE1Imported Channel 1CRANunspeunkno8461206191.36UNSPUNSPUNSPunknUNSPUNSPUNSP
61998-03-26 08:25MSTYesTLH/CLCUSGS12406.41-0.021.30Fair NONE1Imported Channel 1CRANunspeunkno12401497301.69UNSPUNSPUNSPunknUNSPUNSPUNSP
51998-02-12 09:15MSTYesCLCUSGS3455.010.000.80Good NONE1Imported Channel 1WADEunspeunkno3451422421.42UNSPUNSPUNSPunknUNSPUNSPUNSP
41997-10-15 -- ----YesTEC/KADUSGS6775.650.000.80Good NONE1Imported Channel 1UNSPother 677 UNSPUNSPUNSPunknUNSPUNSPUNSP
31997-10-14 -- ----YesTEC/KADUSGS6855.700.000.80Good NONE1Imported Channel 1UNSPother 685 UNSPUNSPUNSPunknUNSPUNSPUNSP
21997-09-23 15:00MDTYesCLCUSGS4565.250.000.80Good NONE1Imported Channel 1WADEunspeunkno4561442821.62UNSPUNSPUNSPunknUNSPUNSPUNSP
11997-08-28 11:00MDTYesGRT/CLCUSGS535 Good NONE1Imported Channel 1WADEunspeunkno5351542811.90UNSPUNSPUNSPunknUNSPUNSPUNSP