Available data

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17 data types available - data from 2012-10-16 to 2026-08-01

17 data types available - data from 2012-10-16 to 2026-07-30

8 data types available - data from 2013-07-17 to 2026-06-24

209 Observed properties (data types) available - with data from 1979-04-25 to 2026-07-22

119 Sampling activities

15 data types available - data from 2012-10-16 to 2026-07-30

Available location images

ILLINOIS RIVER AT SENECA

Illinois River at Seneca, IL, camera on right bank looking downstream

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	05543010	n/a
Location name	ILLINOIS RIVER AT SENECA, IL	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	41.2998888888889	n/a
Decimal longitude (WGS84)	-88.6141944444444	n/a
Latitude-longitude method	GNSS2 - Level 1 Quality Survey Grade Global Navigation Satellite System	X
Latitude-longitude accuracy	Accurate to + or - 5 sec.	F
District	Illinois	17
State	Illinois	17
County	LaSalle County	099
Country	United States of America	n/a
Altitude of gage/land surface	462.58 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.02 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Upper Illinois	07120005
Drainage basin		n/a
Date of first construction	20121015	n/a
Drainage area	8215 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	CST	n/a
Site honors Daylight Saving Time	N	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