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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

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

0 data types available

2 data types available - data from 1969-10-01 to 1986-11-30

2 data types available - data from 1955-10-28 to 1991-10-16

79 Observed properties (data types) available - with data from 1982-06-08 to 1991-10-04

54 Sampling activities

2 data types available - with data from 1970-06-25 to 1986-06-04

2 data types available - data from 1969-10-01 to 1986-11-30

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	06208800	n/a
Location name	Clarks Fork Yellowstone River nr Silesia MT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	45.5129722222222	n/a
Decimal longitude (WGS84)	-108.828411111111	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	Carbon County	009
Country	United States of America	n/a
Altitude of gage/land surface	3410 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	Clarks Fork Yellowstone	10070006
Drainage basin		n/a
Date of first construction		n/a
Drainage area	2110 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