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Available data

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Continuous data

4 data types available - data from 2009-07-20 to 2026-08-09

Daily data

3 data types available - data from 1922-08-18 to 2026-08-07

Field measurements

6 data types available - data from 1973-12-21 to 2026-05-07

Discrete sample data

35 Observed properties (data types) available - with data from 1954-10-07 to 1980-09-25

35 Sampling activities

Peak measurements

2 data types available - with data from 1923-04-29 to 2025-05-11

Statistical tables for select daily data types

3 data types available - data from 1922-08-18 to 2026-08-07

Important information about this monitoring location

The elevation of this station has been determined to be 772.40 feet above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988 add 772.40 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	01157000	n/a
Location name	ASHUELOT RIVER NEAR GILSUM, NH	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	43.0392458643219	n/a
Decimal longitude (WGS84)	-72.2700857695084	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	New Hampshire	33
State	New Hampshire	33
County	Cheshire County	005
Country	United States of America	n/a
Altitude of gage/land surface	772.4 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	Ashuelot River-Connecticut River	01080201
Drainage basin		n/a
Date of first construction		n/a
Drainage area	71.1 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 Ashuelot River Near Gilsum, NH - USGS-01157000