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Nass River in British Columbia

River42.1 mi
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Around here

Around Nass River

10 mi

Public land: USGS PAD-US

About this river

Nass River is a 42.1 mile river. Streamflow is measured at the Water Survey of Canada gauge Nass River above Shumal Creek (site 08DB001). Reach geometry comes from Natural Resources Canada's National Hydro Network.

Typical flow by month

1929 to 2025

Nass River typically runs highest in June, at a median 69,747 cfs, and lowest in February, at 4,097 cfs. The highest flow on record for any single day is 334,077 cfs, in 1961.

Show the numbers
Typical flow by month at Nass River above Shumal Creek, in cfs
MonthTypical (cfs)Usual range (cfs)
January4,4503,637 to 6,092
February4,0973,263 to 5,297
March4,0973,169 to 5,421
April9,5616,966 to 12,735
May40,96531,554 to 58,269
June69,74754,738 to 85,285
July56,15046,969 to 66,745
August39,37635,032 to 46,174
September27,88121,021 to 36,507
October22,65416,183 to 34,114
November11,1869,111 to 16,364
December6,0394,414 to 8,087

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 88 years of record. Statistics published by the US Geological Survey for Nass River above Shumal Creek (site 08DB001). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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