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Boundary Creek in Idaho

Stream12.7 mi
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Around here

Around Boundary Creek

Shorty Peak Lookout8.8 miSelkirk Crest Wilderness Study Area5.2 mi5 mi

Data Source: Recreation.gov · Source: Recreation Sites and Trails BC, Open Government Licence (British Columbia) · Public land: USGS PAD-US

About this river

Boundary Creek is a 12.7 mile stream. Streamflow is measured at the USGS gauge Boundary Creek near Porthill ID (site 12321500). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1928 to 2026

Boundary Creek typically runs highest in May, at a median 852 cfs, and lowest in September, at 27 cfs. The highest flow on record for any single day is 3,100 cfs, in 1980.

Show the numbers
Typical flow by month at Boundary Creek near Porthill ID, in cfs
MonthTypical (cfs)Usual range (cfs)
January4229 to 61
February4028 to 58
March5437 to 91
April212128 to 335
May852621 to 1,160
June536280 to 837
July9062 to 145
August3126 to 43
September2720 to 40
October3424 to 56
November5232 to 103
December4931 to 85

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 97 years of record. Statistics published by the US Geological Survey for Boundary Creek near Porthill ID (site 12321500). 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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