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Puget Sound, Washington

Puget Sound
PugetSound-NASA.jpg
Puget Sound – MODIS image
Named for: Peter Puget
Country United States
State Washington
Region Puget Sound Lowlands
Cities Seattle, Tacoma, Washington, Olympia, Everett, Bremerton
Rivers Deschutes River, Nisqually River, Puyallup River, Duwamish River, Cedar River, Snohomish River, Stillaguamish River, Skagit River, Skokomish River
Coordinates 47°36′N 122°24′W / 47.6°N 122.4°W / 47.6; -122.4Coordinates: 47°36′N 122°24′W / 47.6°N 122.4°W / 47.6; -122.4
Length 100 mi (161 km)
Width 10 mi (16 km)
Depth 930 ft (283 m)
Volume 26.5 cu mi (110 km3)
Basin 12,138 sq mi (31,437 km2)
Area 1,020 sq mi (2,642 km2)
Discharge
 - average 41,000 cu ft/s (1,161 m3/s)
 - max 367,000 cu ft/s (10,392 m3/s)
 - min 14,000 cu ft/s (396 m3/s)
Map-pugetsound.png

Puget Sound /ˈpjuːɪt/ is a sound along the northwestern coast of the U.S. state of Washington, an inlet of the Pacific Ocean, and part of the Salish Sea. It is a complex estuarine system of interconnected marine waterways and basins, with one major and two minor connections to the open Pacific Ocean via the Strait of Juan de FucaAdmiralty Inlet being the major connection and Deception Pass and Swinomish Channel being the minor.

Water flow through Deception Pass is approximately equal to 2% of the total tidal exchange between Puget Sound and the Strait of Juan de Fuca. Puget Sound extends approximately 100 miles (160 km) from Deception Pass in the north to Olympia, Washington in the south. Its average depth is 450 feet (140 m) and its maximum depth, off Jefferson Point between Indianola and Kingston, is 930 feet (280 m). The depth of the main basin, between the southern tip of Whidbey Island and Tacoma, Washington, is approximately 600 feet (180 m).

Since 2009, the term Salish Sea has been established by the United States Board on Geographic Names as the collective waters of Puget Sound, the Strait of Juan de Fuca, and the Strait of Georgia. Sometimes the terms "Puget Sound" and "Puget Sound and adjacent waters" are used for not only Puget Sound proper but also for waters to the north, such as Bellingham Bay and the San Juan Islands region.


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