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Peak Streamflow for the Nation

USGS 12322000 KOOTENAI RIVER AT PORTHILL ID

Boundary County, Idaho
Hydrologic Unit Code 17010104
Latitude  48°59'47", Longitude 116°30'27" NAD83
Drainage area 13,700  square miles
Gage datum 1,700 feet above NGVD29

Period of record
Begin Date End Date Peaks
1894 2023-05-18 100

 
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