Lower Tillamook River at Oregon Route 131 bridge
|Source||Northern Oregon Coast Range|
|- location||low coastal hills southwest of Tillamook|
|- elevation||744 ft (227 m) |
|- elevation||0 ft (0 m) |
|- coordinates||Coordinates: |
|Length||17 mi (27 km) |
|Basin||61 sq mi (158 km2) |
The Tillamook River is a stream, about 17 miles (27 km) long, near the coast of northwest Oregon in the United States. It drains an oceanside valley in the foothills of the Northern Oregon Coast Range west of Portland and empties into the Pacific Ocean via Tillamook Bay. It is one of five rivers—the Tillamook, the Trask, the Wilson, the Kilchis, and the Miami—that flow into the bay.
Rising in southern Tillamook County about 4 miles (6.4 km) east of Cape Lookout, it flows initially east, then generally north, through a long broadening farming valley, passing west of Tillamook and entering the south end of Tillamook Bay. For its lower 1 mile (1.6 km), it shares a channel with the Trask River.
Although much of the upper watershed of about 61 square miles (160 km2) is forested, much of the lower valley consists of drained pasture land. Home of the Tillamook County Creamery Association, the county has been called "a natural cow pasture" by Sunset Magazine".
Named tributaries from source to mouth are Mills, Munson, Joe, Simmons, Fawcett, Killam, and Bewley creeks. Then come Sutton, Beaver, Anderson, Fagan, Esther, Tomlinson, Memaloose, and Dick creeks.
- Source elevation derived from Google Earth search using GNIS source coordinates.
- "Tillamook River". Geographic Names Information System (GNIS). United States Geological Survey. November 28, 1980. Retrieved November 11, 2009.
- "Tillamook River Basin". Tillamook Bay Watershed Council. Archived from the original on July 24, 2011. Retrieved November 11, 2009.
- "Five Rivers". Tillamook Bay Watershed Council. Retrieved November 14, 2009.
- Oregon Atlas and Gazetteer (Map) (2008 ed.). DeLorme Mapping. § 26. ISBN 978-0-89933-347-2.
- "Sunset" (Google books online reprint). 31. Passenger Department, Southern Pacific Co. 1913: 572.
- "United States Topographic Map". United States Geological Survey. Retrieved January 30, 2016 – via ACME Mapper.