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DESCRIPTION:

Latitude 45°20'55",   Longitude 122°37'08"   NAD27

Clackamas County, Oregon, Hydrologic Unit 17090007

Drainage area: 10,000 square miles

Datum of gage: 0.00 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2017-07-22
Daily Data
Gage height, feet	1976-10-29	2017-07-21	14481
Daily Statistics
Gage height, feet	1976-10-29	2016-12-17	14271
Monthly Statistics
Gage height, feet	1976-10	2016-12
Annual Statistics
Gage height, feet	1977	2017
Peak streamflow	2015	2016	2
Field measurements	1992-12-16	2001-09-28	14
Water-Year Summary	2006	2016	11

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