Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Naselle River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Naselle River, the highest being situated at an altitude of ft, the .

The Naselle River is located in the southwestern part of Washington State, and it flows into the Pacific Ocean. It is approximately 21 miles long and has a watershed area of 102 square miles. The Naselle River was once home to the Naselle people, a tribe of Native Americans that lived in the area for thousands of years. The river is also known for its hydrology, as it has been the site of several dams and reservoirs over the years, including the North Fork Naselle Dam and the South Fork Naselle Dam. These dams were built to provide hydroelectric power and to control flooding. Today, the Naselle River is used for recreational activities such as fishing, kayaking, and swimming. The river also supports local agriculture, providing irrigation water for crops such as cranberries and blueberries.