Important for you to know:

How are we doing? We want to hear from you. Take our quick survey to tell us what you think.
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.

This station is operated seasonally (Streamflow May 1 - October 31; Water temperature May 1 - November 30).

Available data

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

3 data types available - data from 2008-07-02 to 2026-09-10

2 data types available - data from 2007-07-01 to 2026-09-09

2 data types available - data from 2007-06-27 to 2026-08-10

8 Observed properties (data types) available - with data from 2007-06-27 to 2013-08-29

59 Sampling activities

2 data types available - with data from 2007-07-01 to 2024-06-11

2 data types available - data from 2007-07-01 to 2026-09-08

Zoom out to see link to My Favorites

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	06026420	n/a
Location name	Big Hole R bl Hamilton Ditch nr Twin Bridges, MT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	45.5500222222222	n/a
Decimal longitude (WGS84)	-112.360675	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	Madison County	057
Country	United States of America	n/a
Altitude of gage/land surface	4630 feet	n/a
Method altitude determined	Interpolated from topographic map.	M
Altitude accuracy	5 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Big Hole	10020004
Drainage basin		n/a
Date of first construction		n/a
Drainage area	2790.7 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