Available data

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

2 data types available - data from 1987-10-01 to 2026-09-22

2 data types available - data from 1941-04-11 to 2026-09-20

3 data types available - data from 1924-07-17 to 2026-09-17

16 Observed properties (data types) available - data from 1974-08-20 to 2022-08-03

6 Sampling activities

2 data types available - data from 1942-06-27 to 2025-02-24

2 data types available - data from 1941-04-11 to 2026-09-20

Available location images

Mill Creek at Walla Walla Channel

View across Mill Creek gaging reach for situational awareness and PIV discharge computation.

Mill Creek at Walla Walla

Upstream view of USACE Mill Creek project weirs and diversion gates.

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	14015000	n/a
Location name	MILL CREEK AT WALLA WALLA, WA	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	46.0762483397468	n/a
Decimal longitude (WGS84)	-118.273572211729	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	Walla Walla County	071
Country	United States of America	n/a
Altitude of gage/land surface	1120 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	Walla Walla	17070102
Drainage basin		n/a
Date of first construction		n/a
Drainage area	95.7 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