The Wilson River, about 33mi long, flows from the Northern Oregon Coast Range to Tillamook Bay in the U.S. state of Oregon. Formed by the confluence of its Devil's Lake Fork and its South Fork, it runs generally west through the Tillamook State Forest to its mouth near the city of Tillamook. It is one of five rivers—the Tillamook, the Trask, the Wilson, the Kilchis, and the Miami—that flow into the bay.CourseThe river rises in the Tillamook State Forest in the mountains of northeastern Tillamook County. The river's North Fork rises in northern Tillamook County and flows south. Its South Fork rises in eastern Tillamook County and western Washington County and flows west to merge with Devils Lake Fork. Further downstream, the Wilson River receives the North Fork near Lees Camp. It then flows southwest to Tillamook, entering the southeast end of Tillamook Bay about 3mi northwest of the city. The mouth of the river is about 1mi north of the mouth of the Trask River and slightly south of the mouth of the Kilchis River. Oregon Route 6, also known as the Wilson River Highway, runs parallel to the river and links the Tualatin Valley and the Portland metropolitan area with the Oregon Coast.
