Maximum discharge along the river was observed at the Musselshell River At Harlowton Mt with a streamflow rate of 31.5 cfs. However, the deepest point on the river is located at the Musselshell River Ab Mud Cr Nr Shawmut Mt reporting a gauge stage of 3.24 ft. This river is monitored from 6 different streamgauging stations along the Musselshell River, the highest being perched at an elevation of 4,668 ft, the Musselshell River Nr Martinsdale.