Maximum discharge along the river was observed at the Ruby River Bl Reservoir Nr Alder Mt with a streamflow rate of 178 cfs. However, the deepest point on the river is located at the Ruby River Ab Reservoir Nr Alder Mt reporting a gauge stage of 3.06 ft. This river is monitored from 3 different streamgauging stations along the Ruby River, the highest being perched at an elevation of 5,410 ft, the Ruby River Ab Reservoir Nr Alder Mt.