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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 12323600 Silver Bow Creek at Opportunity MT

Deer Lodge County, Montana
Hydrologic Unit Code 17010201
Latitude  46°06'27.93", Longitude 112°48'19.02" NAD83
Drainage area 343  square miles
Gage datum 4,912 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 1989-11-09 2023-11-01 553 15029
Information 1989-11-09 2023-11-01 471 2232
Physical 1989-11-09 2023-11-01 553 5228
Inorganics, Major, Metals 1993-03-08 2023-08-15 275 1086
Inorganics, Major, Non-metals 1993-03-08 2023-11-01 314 1067
Nutrient 2008-06-02 2009-08-18 40 360
Inorganics, Minor, Metals 1993-03-08 2023-08-15 312 3655
Inorganics, Minor, Non-metals 1993-03-08 2023-08-15 312 610
Organics, other 2012-05-15 2023-11-01 84 84
Sediment 1993-03-08 2023-11-01 250 707