Available data

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2 data types available - data from 1995-12-19 to 2026-07-31

2 data types available - data from 1949-04-28 to 2026-07-31

2 data types available - data from 1942-04-29 to 2026-06-02

483 Observed properties (data types) available - with data from 1983-11-17 to 2025-09-22

305 Sampling activities

1 data types available - data from 1949-04-28 to 2026-07-29

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	07018100	n/a
Location name	Big River near Richwoods, MO	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	38.1596111111111	n/a
Decimal longitude (WGS84)	-90.7060555555556	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .5 sec (PLGR/PPS GPS).	5
District	Missouri	29
State	Missouri	29
County	Jefferson County	099
Country	United States of America	n/a
Altitude of gage/land surface	522.53 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.07 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Big	07140104
Drainage basin		n/a
Date of first construction		n/a
Drainage area	735 square miles	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