BIG LOST − BLO MACKAY RES (MAKI1)
   State:  Idaho
   County:  Custer
   Latitude:  43 56' 20" North
   Longitude:  113 38' 49" West
   Elevation:  5946 ft

   Supporting NWS Forecast Office: WFO Pocatello

   
Click for NWS Official River Forecasts for MAKI1

   Action Stage:  
3.8 ft
   Flood Stage:  
4.3 ft
Daily Historical Statistics for October 17, 2025
Mean Stage: 1.84 ft  Mean Flow: 159 cfs
Max Stage: 3.31 ft  Max Flow: 900 cfs (1922)
Min Stage:  1.33 ft   Min Flow: 40 cfs (1974)

Statistics based on water years: 1905-2008
* statistics estimated based on current rating

Record Stage: 
6.08 ft

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for MAKI1


For Data Used In Plot   "label