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USGS 12371550 Flathead Lake at Polson MT

  Lake Site

DESCRIPTION:
Latitude 47°41'48.87",   Longitude 114°09'40.67"   NAD83
Lake County, Montana, Hydrologic Unit 17010208
Drainage area: 7,086 square miles
Datum of gage: 2,878.0 feet above   LMSL.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Daily Data
    Elevation of reservoir water surface above datum, feet  1999-10-01  2025-10-24  9518 
    Elevation of reservoir water surface above datum, feet  1909-04-06  1999-09-30  24434 
 Daily Statistics 
    Elevation of reservoir water surface above datum, feet  1999-10-01  2025-06-12 9384 
 Monthly Statistics 
    Elevation of reservoir water surface above datum, feet  1999-10  2025-06  
 Annual Statistics 
    Elevation of reservoir water surface above datum, feet  2000  2025  
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1969-07-07  1971-06-07  24 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Montana Water Science Center
Email questions about this site to Montana Water Science Center Water-Data Inquiries
ADDITIONAL INFORMATION
Reservoir elevation data is collected in local Somers
datum. Somers datum can be converted to NGVD29 by subtracting 1.00
ft.