Available data

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7 data types available - data from 2007-10-01 to 2026-07-31

1 data types available - data from 1986-10-01 to 2016-12-11

2 data types available - data from 1986-10-06 to 2026-06-08

103 Observed properties (data types) available - with data from 2023-03-08 to 2026-07-07

34 Sampling activities

0 data types available

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	05587498	n/a
Location name	Mississippi River Pool Lock and Dam 26 at Alton,IL	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	38.8873055555556	n/a
Decimal longitude (WGS84)	-90.184	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - 5 sec.	F
District	Missouri	29
State	Illinois	17
County	Madison County	119
Country	United States of America	n/a
Altitude of gage/land surface	399.66 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.17 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Peruque-Piasa	07110009
Drainage basin		n/a
Date of first construction		n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	CST	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