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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

15389100 PORCUPINE R 9.5MI AB MOUTH NR FORT YUKON AK
Yukon-Koyukuk Census Area County, Alaska
Hydrologic Unit Code 19080108
Latitude  66°39'06.5", Longitude 145°05'47.5" NAD27
Drainage area 41,900  square miles
Gage datum 425 feet above NGVD29
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Graph of streamflow measurement data at USGS 15389100 PORCUPINE R 9.5MI AB MOUTH NR FORT YUKON AK
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