Tugidak Island is an island of the
Kodiak Archipelago in
Kodiak Island Borough,
Alaska,
United States. It lies southwest of the southern tip of
Kodiak Island in the western part of the
Gulf of Alaska.
Sitkinak Island lies to its east. Tugidak Island has a land area of 173.142 km² (66.85 sq mi) and no resident population. The most prominent feature of the island is the large shallow
lagoon near its northeastern end. This part of the island was established as the Tugidak Island Critical Habitat Area by the state of Alaska in 1998 as a wildlife conservation area, and is managed by the
Alaska Department of Fish and Game. The island has historically been known as a nesting spot for
harbor seals as well as many species of marine birds.
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