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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  2026-02-21
2007-10-01  2026-02-21







 (7)
 
  -- or --

 

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

Discharge, cubic feet per second
Most recent instantaneous value: 73.1 02-21-2026   19:45 MST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Feb 21 based on 112 water years of record more
Most Recent
Instantaneous
Value Feb 21		 Min
(2022)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(1914)
73.1 73.4 99 116 130 137 460

Gage height, feet
Most recent instantaneous value: 1.53 02-21-2026   19:45 MST
Graph of Gage height, feet

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