Hart Island is a minor

island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

. It is located near the city of

Sedro-Woolley Sedro-Woolley is a city in Skagit County, Washington, United States. It is part of the Mount Vernon– Anacortes, Washington Metropolitan Statistical Area and had a population of 12,421 at the 2020 census. The city is home to North Cascade ...

on the

Skagit River The Skagit River ( ) is a river in southwestern British Columbia in Canada and northwestern Washington in the United States, approximately 150 mi (240 km) long. The river and its tributaries drain an area of 1.7 million acres (690,000& ...

, and is carved out by the

Hart Slough Hart often refers to: * Hart (deer) Hart may also refer to: Organizations * Hart Racing Engines, a former Formula One engine manufacturer * Hart Skis, US ski manufacturer * Hart Stores, a Canadian chain of department stores * Hart's Reptile W ...

. DeBays Island is adjacent to Hart Island.

References

River islands of Washington (state) Islands of Skagit County, Washington {{SkagitCountyWA-geo-stub