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Water Quality Samples for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting in February 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.

USGS 12324680 Clark Fork at Goldcreek MT

Powell County, Montana
Hydrologic Unit Code 17010201
Latitude  46°35'23.96", Longitude 112°55'43.37" NAD83
Drainage area 1,774  square miles
Gage datum 4,172.8 feet above NGVD29
Output formats
Parameter Group Period of Record table
Inventory of available water-quality data for printing
Inventory of water-quality data with retrieval
Tab-separated data, one result per row
Tab-separated data one sample per row with remark codes combined with values
Tab-separated data one sample per row with tab-delimiter for remark codes
Reselect output format
Parameter Group Summary of Available Data
Parameter Group First
Number of
Number of
All -- include all parameter groups 1982-06-22 2023-11-02 542 11979
Information 1982-06-22 2023-11-02 469 2029
Physical 1982-06-22 2023-11-02 542 4687
Inorganics, Major, Metals 1986-10-21 2023-07-13 250 616
Inorganics, Major, Non-metals 1986-10-21 2023-11-02 253 434
Nutrient 1986-10-21 1986-10-21 1 4
Inorganics, Minor, Metals 1986-10-21 2023-07-13 250 2998
Inorganics, Minor, Non-metals 1986-10-21 2023-07-13 250 500
Sediment 1993-03-09 2023-08-16 250 711