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Available data

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Continuous data

2 data types available - data from 2008-09-12 to 2026-08-02

Daily data

1 data types available - data from 2008-09-12 to 2026-07-31

Field measurements

4 data types available - data from 2008-09-23 to 2026-06-01

Discrete sample data

0 observed properties (data types) available

Statistical tables for select daily data types

1 data types available - data from 2008-09-12 to 2026-07-31

Important information about this monitoring location

The elevation of this station has been determined to be 608.42 feet above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988 add 608.42 feet to gage height values.

Location details and information

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Operated in cooperation with:

New Hampshire Department of Environmental Services

USGS - Cooperative Matching Funds

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01077400	n/a
Location name	COCKERMOUTH RIVER BELOW HARDY BROOK, AT GROTON, NH	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	43.7038888888889	n/a
Decimal longitude (WGS84)	-71.8333333333333	n/a
Latitude-longitude method	Interpolated from Digital MAP.	N
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	New Hampshire	33
State	New Hampshire	33
County	Grafton County	009
Country	United States of America	n/a
Altitude of gage/land surface	608.42 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.01 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Pemigewasset River	01070001
Drainage basin		n/a
Date of first construction		n/a
Drainage area	21.4 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

Monitoring location Cockermouth River Below Hardy Brook, at Groton, NH - USGS-01077400