Possession Sound is part of Puget Sound, located in the U.S. state of Washington between

Whidbey Island Whidbey Island (historical spellings Whidby, Whitbey, or Whitby) is the largest of the islands composing Island County, Washington, Island County, Washington (state), Washington, in the United States, and the largest island in Washington Sta ...

and the shoreline of

Snohomish County Snohomish County () is a county located in the U.S. state of Washington. With a population of 827,957 as of the 2020 census, it is the third-most populous county in Washington, after nearby King and Pierce counties, and the 75th-most populou ...

approximately between the cities of Everett and Mukilteo. Possession Sound connects the main Puget Sound basin to the south with Saratoga Passage and

Port Susan Port Susan is a bay and strait located in the U.S. state of Washington. Part of the Whidbey Island Basin of Puget Sound, Port Susan is bounded by Camano Island to the west and the mainland to the east. The Stillaguamish River empties into the no ...

to the north. The Snohomish River flows into Possession Sound at

Port Gardner Bay Port Gardner, also known as Port Gardner Bay, is an inlet of Possession Sound on which the city of Everett, Washington is located. The Snohomish River flows into the north end of the bay. It was named by George Vancouver for his patron and former ...

. Gedney Island, also called Hat Island, is located in Possession Sound. Possession Sound was named by

George Vancouver Captain George Vancouver (22 June 1757 – 10 May 1798) was a British Royal Navy officer best known for his 1791–1795 expedition, which explored and charted North America's northwestern Pacific Coast regions, including the coasts of what a ...

. On June 3, 1792, Vancouver landed near the present site of Everett and celebrated the birthday of

George III George III (George William Frederick; 4 June 173829 January 1820) was King of Great Britain and of Ireland from 25 October 1760 until the union of the two kingdoms on 1 January 1801, after which he was King of the United Kingdom of Great Bri ...

by holding a ceremony claiming possession of the land of "New Georgia" for Britain. Due to his circumnavigation of the world, Vancouver's dates are off by one. June 3 was, by his reckoning, June 4, the king's birthday. His possession ceremony also involved the naming of Possession Sound, Port Gardner, Port Susan, and the

Gulf of Georgia The Strait of Georgia (french: Détroit de Géorgie) or the Georgia Strait is an arm of the Salish Sea between Vancouver Island and the extreme southwestern mainland coast of British Columbia, Canada and the extreme northwestern mainland coast ...

. In 1825 a large piece of the southern tip of

Camano Island Camano Island is a large island in Possession Sound, a section of Puget Sound. It is part of Island County, Washington, and is located between Whidbey Island and the mainland (Snohomish County) by the Saratoga Passage to the west and Port Sus ...

slid into Possession Sound—an event known as the Great Slide. A resultant

tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explo ...

from the slide drowned many Indian residents of nearby Hat Island. After that, the

Tulalip The Tulalip Tribes of Washington (, lut, dxʷlilap), formerly known as the Tulalip Tribes of the Tulalip Reservation, is a federally recognized tribe of Duwamish, Snohomish, Snoqualmie, Skagit, Suiattle, Samish, and Stillaguamish people. ...

Indians used the site only for seasonal clamming. The Washington State Route 525, Mukilteo- Clinton passenger ferry run crosses the narrowest section of Possession Sound.

References

External links

* Estuaries of Washington (state) Everett, Washington Bodies of water of Island County, Washington Landforms of Puget Sound Bodies of water of Snohomish County, Washington {{SnohomishCountyWA-geo-stub