Available data

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3 data types available - data from 1990-10-01 to 2026-08-08

3 data types available - data from 1929-10-01 to 2026-08-07

2 data types available - data from 1929-10-20 to 2026-07-08

34 Observed properties (data types) available - with data from 1930-04-01 to 2008-05-29

66 Sampling activities

2 data types available - with data from 1929-10-02 to 2025-08-02

3 data types available - data from 1929-10-01 to 2026-08-06

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	02073000	n/a
Location name	SMITH RIVER AT MARTINSVILLE, VA	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	36.6612486036096	n/a
Decimal longitude (WGS84)	-79.8805945950172	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Unknown or unspecified.	U
District	Virginia	51
State	Virginia	51
County	Henry County	089
Country	United States of America	n/a
Altitude of gage/land surface	656.09 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.16 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Upper Dan	03010103
Drainage basin		n/a
Date of first construction		n/a
Drainage area	379 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	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