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Blackstone River in Northwest Territories

River35.3 mi
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Around here

Around Blackstone River

5 mi

About this river

Blackstone River is a 35.3 mile river. Streamflow is measured at the Water Survey of Canada gauge Blackstone River at Highway No. 7 (site 10ED007). Reach geometry comes from Natural Resources Canada's National Hydro Network.

Typical flow by month

1991 to 2024

Blackstone River typically runs highest in May, at a median 1,164 cfs, and lowest in March, at 8.2 cfs. The highest flow on record for any single day is 13,985 cfs, in 2009.

Show the numbers
Typical flow by month at Blackstone River at Highway No. 7, in cfs
MonthTypical (cfs)Usual range (cfs)
January1410 to 19
February127.0 to 15
March8.24.8 to 12
April158.7 to 28
May1,164519 to 2,050
June427221 to 742
July292123 to 611
August16462 to 410
September14355 to 466
October17269 to 334
November6134 to 92
December2619 to 31

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 33 years of record. Statistics published by the US Geological Survey for Blackstone River at Highway No. 7 (site 10ED007). 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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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Blackstone River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.

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