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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.

Available data

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0 data types available

3 data types available - data from 1910-05-01 to 1983-10-18

2 data types available - data from 1908-10-09 to 2022-06-13

94 Observed properties (data types) available - with data from 1970-10-21 to 1985-08-22

44 Sampling activities

2 data types available - with data from 1910-06-02 to 2022-06-13

3 data types available - data from 1910-05-01 to 1983-10-18

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	06197500	n/a
Location name	Boulder River near Contact MT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	45.5545333333333	n/a
Decimal longitude (WGS84)	-110.200541666667	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	Sweet Grass County	097
Country	United States of America	n/a
Altitude of gage/land surface	4930 feet	n/a
Method altitude determined	Interpolated from topographic map.	M
Altitude accuracy	10 feet	n/a
Altitude datum	National Geodetic Vertical Datum of 1929	NGVD29
Subbasin hydrologic unit	Upper Yellowstone	10070002
Drainage basin		n/a
Date of first construction		n/a
Drainage area	225 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