Available data

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10 data types available - data from 2009-04-01 to 2026-01-23

2 data types available - data from 2008-09-30 to 2025-10-12

5 data types available - data from 2009-09-15 to 2022-09-06

49 Observed properties (data types) available - with data from 2018-06-19 to 2026-01-22

15 Sampling activities

2 data types available - data from 2008-09-30 to 2025-10-12

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	13343590	n/a
Location name	LOWER GRANITE LK FOREBAY AT LOWER GRANITE DAM, WA	n/a
Site type	Lake, Reservoir, Impoundment	LK
Decimal latitude (WGS84)	46.659287106083035	n/a
Decimal longitude (WGS84)	-117.42632738835962	n/a
Latitude-longitude method	Global positioning system (GPS), Standard Positioning Service (SPS) or Precise Positioning Service (PPS)	G
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Washington	53
State	Washington	53
County	Whitman County	075
Country	United States of America	n/a
Altitude of gage/land surface	738 feet	n/a
Method altitude determined	Interpolated from topographic map.	M
Altitude accuracy	10 feet	n/a
Altitude datum	National Geodetic Vertical Datum of 1929	NGVD29
Subbasin hydrologic unit	Lower Snake-Tucannon	17060107
Drainage basin		n/a
Date of first construction		n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	PST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Lower Granite LK Forebay at Lower Granite Dam, WA - USGS-13343590