Kruzof Island () is an island in the Alexander Archipelago in southeastern Alaska. It is about west of Sitka, and is part of the City and Borough of Sitka. It was named in 1805 by Captain U. T. Lisianski as Crooze Island, after a Russian Admiral. It hosts the region's only volcano, Mount Edgecumbe.
In 1849, Captain Tebenkov recorded the Tlingit name for the island as being Tlikh. Early Russian traders called it Sitka Island. In 1849, Constantin Grewingk called the island Edgecumbe.
Geography
thumb|Volcano field on Kruzof Island with Mt. Edgecumbe, Crater Ridge, and several smaller cones.
The island is long and wide with a land area of , making it the 41st largest island in the United States. The island is formed in part by Mount Edgecumbe, a small, dormant There is a maintained trail leading from Fred's Creek cabin, a United States Forest Service cabin on the inside coast, to the summit of Mount Edgecumbe, as well as several trails across the island.
In January 1813, the Russian exploration ship Neva wrecked just off the island. The survivors made it to shore and established a camp where they subsisted until rescued about a month later. The site of the wreck, and also the survival camp has since been found.
Kalinin Bay, on the northern shore of the island, provided the name for the World War II United States Navy escort aircraft carrier . From the 1950s through the 1970s, forests on Kruzof Island were the source for clearcut timber extraction.
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