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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 483613114111401 Langford Creek at mouth, near Apgar, MT
Flathead County, Montana
Hydrologic Unit Code 17010206
Latitude  48°36'13.33", Longitude 114°11'13.97" NAD83
Gage datum 3,433 feet above NAVD88
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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)
E212024-07-25 14:51:30MDTNo
E112023-08-10 10:32:30MDTNo
E102023-05-13 13:25MDTNo
52022-09-28 02:21:39MDTYesCBR,JADusgs0.521.18 FairClearNONE1MainWADEQSCMMVADV0.525.802.340.22FIRMCBLSUNEVPULSUNEVUNKNDNST10.00
E202022-08-01 13:48MDTNo
E192022-04-20 14:24:30MDTNo
42021-10-05 11:40MDTYeskdv/cbrUSGS0.671.20 PoorDebrisLightNONE1mainWADEQSCMMVADV0.676.003.590.19FIRMBLDRUNEVSTDYUNEVNSTDDNST30.00
E182021-09-15 15:45MDTNo
E92021-08-16 14:15MDTYesEMAEMA0.961.28 Good NONE1Imported Channel 1UNSPQSCMMunkno0.965.25 unknunknunknunknunknUNKNunkn
E82020-09-02 12:03MDTNo
32020-08-05 17:33:30MDTYessldUSGS1.611.28 PoorClearNONE1MainWADEQSCMMVADV1.616.503.230.50FIRMGRVLEVENSTDYEVENSTNDDNST8.00
E72020-08-05 16:51MDTYesEMAEMA1.481.26 Poor NONE1Imported Channel 1UNSPQSCMMunkno1.486.564.17 unknunknunknunknunknUNKNunkn
E62020-05-14 12:39MDTYesEMAEMA7.841.73 Fair NONE1Imported Channel 1UNSPQSCMMunkno7.847.556.31 unknunknunknunknunknUNKNunkn
E52020-05-01 13:05MDTYesEMAEMA12.61.99 Fair NONE1Imported Channel 1UNSPQSCMMunkno12.68.047.961.57unknunknunknunknunknUNKNunkn
E42019-09-09 12:48:30MDTYesNRMUSGS1.061.44 Fair NONE1mainWADEQSCMMVELC1.066.234.96 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
22019-08-13 11:11:30MDTYesdwa/vsd/sldUSGS0.971.40-0.010.40FairClearNONE1MainWADEQSCMMVADV0.976.502.750.35FIRMGRVLEVENSTDYEVENSTNDUPST15.00
12019-08-13 11:07:30MDTYesdwa/vsd/sldUSGS0.991.40 FairClearNONE1MainWADEQSCMMVELC0.996.563.96 FIRMGRVLEVENSTDYEVENSTNDDNST10.00
E32019-05-01 13:59:30MDTYesNRMUSGS5.511.77 Fair NONE1mainWADEQSCMMVADV5.517.556.650.83UNSPUNSPUNSPUNSPUNSPUNSPUNSP
E22018-09-18 14:12:30MDTNo
E12018-08-27 15:17:30MDTNo
E172017-09-28 15:30MDTNo
E162017-09-18 12:13MDTNo
E152017-08-29 14:45MDTNo
E142017-08-21 15:00MDTNo
E132017-08-17 14:41MDTNo
E122017-08-07 14:37MDTNo