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USGS 13127000 BIG LOST RIVER BL MACKAY RES NR MACKAY ID

PROVISIONAL DATA SUBJECT TO REVISION

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Big Lost River below Mackay Reservoir near Mackay, ID - USGS file photo USGS Idaho Water Science Center celebrating more than 100 Years of streamgage Records

> Rating Information

> NWS River Forecasts

Station is operated in cooperation with the Idaho Department of Water Resources (IDWR), Big Lost Irrigation District, and U.S. Department of Energy.

This station managed by the Idaho Falls Field Office.

Available Parameters Available Period
  
1987-01-26  2025-10-15
2007-10-01  2025-10-15







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second
Most recent instantaneous value: 194 10-15-2025   00:45 MDT
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Daily discharge, cubic feet per second -- statistics for Oct 15 based on 111 water years of record more
Min
(1950)		 25th
percen-
tile		 Median Mean Most Recent
Instantaneous
Value Oct 15		 75th
percen-
tile		 Max
(1922)
44.0 124 174 187 194 220 998

Gage height, feet
Most recent instantaneous value: 1.97 10-15-2025   00:45 MDT
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