Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Attention current WaterAlert users: NextGen WaterAlert is replacing Legacy WaterAlert. You must take action before 9/30/2022 to retain your alerts. Read more.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
  • Full News RSS icon

USGS 05020500 St. Mary River at International Boundary

  Stream Site

DESCRIPTION:
Latitude 49°00'41.07",   Longitude 113°17'58.37"   NAD83
000, 95,
Drainage area: 462 square miles
Datum of gage: 4,116.04 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1989-10-01  2022-08-18  
 Daily Data
    Discharge, cubic feet per second  1902-09-01  2022-08-17  43815 
 Daily Statistics 
    Discharge, cubic feet per second  1902-09-01  2022-01-03 43590 
 Monthly Statistics 
    Discharge, cubic feet per second  1902-09  2022-01  
 Annual Statistics 
    Discharge, cubic feet per second  1902  2022  
 Peak streamflow 1903-06-08  2021-06-06  117 
 Field measurements 1975-10-01  2022-06-27  848 
 Field/Lab water-quality samples 1977-12-28  2013-08-28  378 
 Water-Year Summary 2006  2021  16 
 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