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Scheduled Maintenance Notice
USGS will be performing maintenance on the time series data processing system beginning at 09:00 EDT on September 10, 2026. During this period, delivery of the latest time series data will be delayed. The maintenance is expected to finish within 2 hours, after which all backlogged time series data will be processed and delivered to WDFN web portals and APIs.

Water temperature at this station is operated seasonally (March 1 - September 30).

Available data

Select data types to graph from categories based on the way the data were collected.

3 data types available - data from 1994-10-01 to 2026-09-08

2 data types available - data from 1893-10-01 to 2026-09-07

3 data types available - data from 1948-06-05 to 2026-08-11

70 Observed properties (data types) available - with data from 1951-09-20 to 2013-08-27

355 Sampling activities

2 data types available - with data from 1895-06-24 to 2025-06-02

2 data types available - data from 1893-10-01 to 2026-09-07

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	06052500	n/a
Location name	Gallatin River at Logan MT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	45.886247222222224	n/a
Decimal longitude (WGS84)	-111.44200833333333	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	4086.42 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	Gallatin	10020008
Drainage basin		n/a
Date of first construction		n/a
Drainage area	1789 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