Tillamook Bay

Tillamook Bay is a small inlet of the Pacific Ocean, approximately 6 mi (10 km) long and 2 mi (3 km) wide, on the northwest coast of the U.S. state of Oregon. It is located just north of Cape Meares in western Tillamook County approximately 75 mi (120 km) west of Portland.

The bay is protected from the open ocean by shoals and a 3 mi (5 km) sandbar called the Bayocean Peninsula. It is surrounded closely by the Coastal Range except at its southeast end, where the town of Tillamook sits near the mouths of the Kilchis, Wilson, Trask and Tillamook rivers, which flow quickly down from the surrounding timber-producing regions of the Coastal Range to converge at the bay. The short Miami River enters the north end of the bay. The small fishing village of Garibaldi sits near the cliffs opening of the bay in the ocean. The rivers that feed the bay are known for their prolific steelhead and salmon runs. The mixing of freshwater from the rivers with the ocean's saltwater makes the bay an estuary.

The name "Tillamook" is Coast Salish word meaning "Land of Many Waters", probably referring to the rivers that enter the bay. At the time of the arrival of Europeans, the area along the coast was inhabited by the Tillamook and other related Coast Salish tribes. Historians believe they entered the area around the year 1400 and Lewis and Clark estimated the population south of the Columbia River along the coast at approximately 2,200.

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