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Lake Clark National Park and Preserve Forests
Forests dominate the eastern side of Lake Clark National Park, while the eastern part of the preserve is primarily tundra.
Forests of Sitka and white spruce fall at the bottom of the eastern Chigmit Mountains while boreal forest are present on the western side.
Maine ocean islands provide the only nesting sites for Atlantic puffins in the United States. Eastern Egg Rock in the midcoast region, Seal Island and Matinicus Rock at the mouth of Penobscot Bay, and Machias Seal Island and Petit Manan Island off the downeast coast provide habitat for more than 4,000 puffins each summer.