Available data

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

2 data types available - data from 1987-03-27 to 2026-08-09

2 data types available - data from 1903-06-28 to 2026-08-07

2 data types available - data from 1969-10-02 to 2026-06-25

137 Observed properties (data types) available - with data from 1974-10-08 to 2021-12-07

437 Sampling activities

2 data types available - with data from 1904-03-22 to 2025-08-20

2 data types available - data from 1903-06-28 to 2026-08-07

Zoom out to see link to My Favorites

Operated in cooperation with:

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	05437500	n/a
Location name	ROCK RIVER AT ROCKTON, IL	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	42.4502777777778	n/a
Decimal longitude (WGS84)	-89.0725	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Illinois	17
State	Illinois	17
County	Winnebago County	201
Country	United States of America	n/a
Altitude of gage/land surface	707.75 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.01 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Lower Rock	07090005
Drainage basin		n/a
Date of first construction		n/a
Drainage area	6363 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