Available data

Select data types to graph from categories based on the way the data were collected.

18 data types available - data from 1961-12-20 to 2026-08-03

4 data types available - data from 1926-12-10 to 2026-08-01

2 data types available - data from 1946-12-14 to 2026-07-13

215 Observed properties (data types) available - with data from 1967-10-11 to 2026-03-13

2713 Sampling activities

4 data types available - data from 1926-12-10 to 2026-08-01

Datum of gage is NAVD88.

Available location images

Cowlitz River at Castle Rock

Cowlitz River at Castle Rock, WA

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	14243000	n/a
Location name	COWLITZ RIVER AT CASTLE ROCK, WA	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	46.2748332160271	n/a
Decimal longitude (WGS84)	-122.914558654915	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Washington	53
State	Washington	53
County	Cowlitz County	015
Country	United States of America	n/a
Altitude of gage/land surface	0	n/a
Method altitude determined	Interpolated from topographic map.	M
Altitude accuracy	1 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Lower Cowlitz	17080005
Drainage basin		n/a
Date of first construction		n/a
Drainage area	2238 square miles	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