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

The Sprague River is a tributary of the Williamson River, located in southern Oregon. The river spans approximately 75 miles and was once a vital fishing and hunting ground for the Klamath Tribe. In the 1900s, the river was used for irrigation and hydroelectric power, leading to the construction of several dams and reservoirs, including the Chiloquin Dam and Agency Reservoir. These projects caused significant ecological damage, leading to a decline in the river's fish populations. Today, the Sprague River is primarily used for irrigation and supports agricultural activities such as hay and cattle farming. Recreational activities, such as fishing and boating, are also popular in the area. Despite the challenges faced by the river, efforts are being made to restore the ecosystem and protect the river's natural resources.