Available data

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3 data types available - data from 1994-10-01 to 2026-08-05

2 data types available - data from 1938-10-01 to 2026-08-03

2 data types available - data from 1943-05-31 to 2026-06-15

59 Observed properties (data types) available - with data from 1982-06-23 to 2013-09-17

267 Sampling activities

2 data types available - with data from 1940-07-25 to 2025-07-13

2 data types available - data from 1938-10-01 to 2026-08-03

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	06038500	n/a
Location name	Madison River bl Hebgen Lake nr Grayling MT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	44.8663916666667	n/a
Decimal longitude (WGS84)	-111.338780555556	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .1 sec (Differentially-Corrected GPS).	1
District	Montana	30
State	Montana	30
County	Gallatin County	031
Country	United States of America	n/a
Altitude of gage/land surface	6448.47 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.01 feet	n/a
Altitude datum	National Geodetic Vertical Datum of 1929	NGVD29
Subbasin hydrologic unit	Madison	10020007
Drainage basin		n/a
Date of first construction		n/a
Drainage area	931 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	MST	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