Or. Admin. R. 635-500-4500
OAR 635-500-4500 through 635-500-4640 apply to the Siletz River Basin fish management plan. The Siletz River Basin is 364 square miles in size. The main stem Siletz River is 68 miles long. Major tributaries include the North and South forks, Rock Creek, Euchre Creek, and Cedar Creek. Drift and Schooner Creeks flow into Siletz Bay near the mouth of the Siletz River. The Siletz River Basin is characterized by two distinct geologic zones. Most of the upper basin, including the Siletz Gorge and North Fork Siletz River, and tidewater tributaries including Drift and Schooner creeks are in an area of volcanic geology. This results in streams characterized by higher gradients and better summer flows. The middle sections of the basin are in areas of sedimentary geology which produce lower gradient streams and reduced summer flows. This geologic diversity creates substantial variation in stream characteristics in different parts of the basin which in turn results in a high diversity of native fish species. About 613 miles of stream in the Siletz River Basin are populated by salmonid fish species.
Or. Admin. R. 635-500-4500
Stat. Auth.: ORS 496.138, ORS 496.146 & ORS 506.119
Stats. Implemented: ORS 506.109 & ORS 506.129