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Dearborn River in Montana

River62.1 mi
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Around here

Around Dearborn River

Holter Dam Campground16.1 miHolter Lake Campground16.6 mi10 mi

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

About this river

Dearborn River is a 62.1 mile river. Streamflow is measured at the USGS gauge Dearborn River near Craig MT (site 06073500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1946 to 2026

Dearborn River typically runs highest in May, at a median 554 cfs, and lowest in September, at 43 cfs. The highest flow on record for any single day is 12,500 cfs, in 1964.

Show the numbers
Typical flow by month at Dearborn River near Craig MT, in cfs
MonthTypical (cfs)Usual range (cfs)
January4936 to 63
February5039 to 64
March5745 to 86
April182101 to 293
May554342 to 902
June467263 to 877
July11381 to 242
August4832 to 80
September4329 to 60
October5944 to 79
November6145 to 83
December5240 to 74

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 56 years of record. Statistics published by the US Geological Survey for Dearborn River near Craig MT (site 06073500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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