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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.

USGS 623125160135800 BONASILA R 1.8MI AB MTH NR ELKHORN I NR ANVIK AK
Yukon-Koyukuk Census Area County, Alaska
Hydrologic Unit Code 19090304
Latitude  62°31'25", Longitude 160°13'58" NAD27
Drainage area 1,160  square miles
Gage datum 25 feet above NGVD29
Output formats
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of data
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Meas.
Number		   Date       Time Time
Datum		 Measurement
Used?		   Who Measuring
Agency		 Stream
flow
(ft3/s)		 Gage
Height
(ft)		 GH
Change
(ft)		 Meas.
Duration
(hr)		 Meas.
Rated		   Control Flow
Adjust.
Code 
22003-09-01 15:32:30AKDTYesRHHUSGS1870 0.40Fair NONE
12003-06-11 14:28AKDTYesEGNUSGS2900 0.10Poor NONE