ウナラスカ
Sitka Spruce Park is a public park in the city of Unalaska, Alaska. The roughly park is located on Biorka Drive on Amaknak Island, south of Unalaska Airport. It is one of the few places on the island where there are a significant number of trees. A small part of the park is a National Historic Landmark, as it was the site of the earliest documented afforestation in North America. In 1805, Russian agents planted an unknown number of Sitka spruce trees in the area, of which six were documented to be surviving in 1978.