Available data

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2 data types available - data from 1984-02-08 to 2026-08-02

2 data types available - data from 1979-01-17 to 2026-08-01

2 data types available - data from 1986-01-13 to 2026-06-26

147 Observed properties (data types) available - with data from 1979-12-20 to 1988-11-01

67 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	01655480	n/a
Location name	POTOMAC RIVER AT INDIAN HEAD, MD	n/a
Site type	Estuary	ES
Decimal latitude (WGS84)	38.6009518547536	n/a
Decimal longitude (WGS84)	-77.1819243635655	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Maryland	24
State	Maryland	24
County	Charles County	017
Country	United States of America	n/a
Altitude of gage/land surface	0	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.1 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Middle Potomac-Anacostia-Occoquan	02070010
Drainage basin		n/a
Date of first construction		n/a
Drainage area		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

Monitoring location Potomac River at Indian Head, MD - USGS-01655480