Lake Clark National Park and Preserve Natural Features

Earth's deep time and raw newness live side by side at Lake Clark National Park and Preserve. Coastal cliffs on Cook Inlet hold fossil remnants of 150 million years of sea life. But 10,000 feet above them two active, snow-clad volcanoes-Iliamna and Redoubt-can spew out recycled Earth crust as new land surface. Mountain glaciers daily pluck and etch the spectacular scenery here where mountains of the Alaska and Aleutian ranges join. An awesome, jagged array, the park's Chigmit Mountains record centuries and millenia of crustal uplift, intrusion, earthquakes, volcanism, and glacial gouging, scouring, and mounding. Continuously inhabited since early prehistoric times, this region nevertheless remains wild and sparsely populated by humans. Its several ecosystems suggest many diverse regions across Alaska.

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Featured Park
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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.