Overview
The Metolius River (pronounced muh TOLL ee us) is a tributary of the Deschutes River (through Lake Billy Chinook) in Central Oregon, United States, near the city of Sisters. The river flows north from springs near Black Butte, then turns sharply east, descending through a series of gorges before ending in the western end of the lake. The unincorporated community of Camp Sherman lies astride the southern end of the river. The name of the river comes from the Warm Springs or Sahaptin word mitula, meaning white salmon and referring to a light colored Chinook salmon and not a whitefish.
The river's drainage basin is in area and, according to at least one estimate, contains of perennial streams, of intermittent streams, 42 lakes, and 121 ponds.
Headwaters
The headwaters of the river are at Metolius Springs, where the river emerges from two clusters of springs at the base of Black Butte. Water flows to these springs from the drainage basin around Black Butte Ranch, several miles to the south. The elevation of the drainage basin is above that of the springs, forming a natural standpipe that tends to stabilize the river's rate of flow.
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