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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 12324400 Clark Fork ab Little Blackfoot R nr Garrison MT

Powell County, Montana
Hydrologic Unit Code 17010201
Latitude  46°30'39.28", Longitude 112°47'22.87" NAD83
Drainage area 1,130  square miles
Gage datum 4,350 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
Date
Last
Date
Number of
Samples
Number of
Values
All -- include all parameter groups 2009-02-19 2023-11-02 192 6104
Information 2009-03-24 2023-11-02 147 1506
Physical 2009-02-19 2023-11-02 192 1915
Inorganics, Major, Metals 2009-03-24 2023-11-02 136 272
Inorganics, Major, Non-metals 2009-03-24 2023-11-02 135 135
Inorganics, Minor, Metals 2009-03-24 2023-11-02 136 1630
Inorganics, Minor, Non-metals 2009-03-24 2023-11-02 136 272
Sediment 2009-03-24 2023-11-02 146 374