Petrified Forest National Park

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Pet′rified For′est Na′tional Park′

a national park in E Arizona: buried tree trunks turned to stone by the action of mineral-laden water. 147 sq. mi. (381 sq. km).

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Noun

Petrified Forest National Park - a national park in Arizona having the world's largest collection of petrified coniferous trees

Arizona, Grand Canyon State, AZ - a state in southwestern United States; site of the Grand Canyon

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This companion volume to a similarly-titled exhibit is arranged chronologically by period of evolving life at specific modern sites, e.g., Petrified Forest National Park, Arizona, and includes a glossary and further reading.

Prehistoric Journey: A History of Life on Earth

* Petrified Forest National Park, Arizona: the state's congressional delegation plans to introduce legislation to expand the park's boundaries, which would protect paleontological resources, unique archaeological sites, and scenic vistas.

Ten most endangered: for the fourth consecutive year, NPCA identifies ten national parks in greatest need. Lack of sufficient funds and pollution remain primary challenges. (Special Report)

Petrified Forest National Park, Arizona: Visitors steel an estimated 12 tons of fossilized wood from each year.