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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 06078000 Smith River at Truly MT
Cascade County, Montana
Hydrologic Unit Code 10030103
Latitude  47°21'24.98", Longitude 111°26'28.53" NAD83
Drainage area 1,990  square miles
Gage datum 3,330 feet above NGVD29
Output formats
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HTML table without channel data
Tab-separated data with channel data
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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)
61991-09-04 10:45MDTYesasUSGS43.7 Unspecified NONE1Imported Channel 1UNSPother 43.7 UNSPUNSPUNSPunknUNSPUNSPUNSP
51991-08-08 10:15MDTYesasUSGS102 Unspecified NONE1Imported Channel 1UNSPother 102 UNSPUNSPUNSPunknUNSPUNSPUNSP
41978-05-10 -- ----YesnnUSGS10600 Unspecified NONE1Imported Channel 1UNSPother 10600 UNSPUNSPUNSPunknUNSPUNSPUNSP
31968-06-25 23:00MSTYesnnUSGS2350 Unspecified NONE1Imported Channel 1UNSPother 2350 UNSPUNSPUNSPunknUNSPUNSPUNSP
21967-06-13 23:00MSTYesnnUSGS7960 Unspecified NONE1Imported Channel 1UNSPother 7960 UNSPUNSPUNSPunknUNSPUNSPUNSP
11967-05-24 23:00MSTYesnnUSGS2880 Unspecified NONE1Imported Channel 1UNSPother 2880 UNSPUNSPUNSPunknUNSPUNSPUNSP