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Middle Fork Flathead River in Montana

River62.1 mi

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Around Middle Fork Flathead River

Devil Creek Campground9 miRiverside Campground9.5 mi10 mi

Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US

About this river

Middle Fork Flathead River is a 62.1 mile river. Streamflow is measured at the USGS gauge M F Flathead River near West Glacier MT (site 12358500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1940 to 2026

Middle Fork Flathead River typically runs highest in June, at a median 9,180 cfs, and lowest in February, at 550 cfs. The highest flow on record for any single day is 92,700 cfs, in 1964.

Show the numbers
Typical flow by month at M F Flathead River near West Glacier MT, in cfs
MonthTypical (cfs)Usual range (cfs)
January586442 to 828
February550425 to 816
March694485 to 1,050
April2,5501,700 to 4,075
May8,9606,460 to 12,900
June9,1806,245 to 12,800
July3,1402,190 to 4,840
August1,150927 to 1,490
September751608 to 985
October727501 to 1,130
November853568 to 1,425
December706499 to 1,120

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 87 years of record. Statistics published by the US Geological Survey for M F Flathead River near West Glacier MT (site 12358500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

6 mapped launches sit in the mapped area of Middle Fork Flathead River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

  • Horseshoe Lake/FerndaleHorseshoe LakePublic
  • Loon Lake/FerndaleLoon LakePublic
  • Echo LakeEcho LakePublic
  • Riverside Boating SiteHungry Horse ReservoirPublic
  • Paul's MemorialLake FivePublic
  • Two Medicine LakeTwo Medicine LakePublic
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