Maximum discharge on the river today is recorded at the Maple River At Maple Rapids with a streamflow rate of 74.3 cfs. However, the deepest point on the river is located at the Maple River Bl Mapleton reporting a gauge stage of 8.56 ft. This river is monitored from 7 different streamgauging stations along the Maple River, the first of which is perched at an elevation of 1,371 ft, the Maple R At Nd-Sd State Line .