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  1. Mar 16, 2018 · Petrified Wood. Petrified wood found in the park and the surrounding region is made up of almost solid quartz. Each piece is like a giant crystal, often sparkling in the sunlight as if covered by glitter. The rainbow of colors is produced by impurities in the quartz, such as iron, carbon, and manganese. Over 200 million years ago, the logs ...

  2. Most of the Petrified Forest National Park's petrified wood comes from tall conifers. These ancient trees grew more than 200 million years ago along waterways, where periodic flooding uprooted trees.

  3. Petrified Forest National Park. Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.

    • 221,391 acres (895.94 km²)
    • 644,922 (in 2018)
    • Arizona, United States
    • Holbrook
  4. Petrified Forest National Park. The most famous locality for observing petrified wood is Petrified Forest National Park near the community of Holbrook in northeastern Arizona. About 225 million years ago, this area was a lowland with a tropical climate and covered by a dense forest.

  5. Petrified Forest National Park is located in the northeastern corner of Arizona, United States. The park covers an area of 229.6 square miles (594.6 sq km). The park is renowned for the comprehensive collection of petrified trees. These are some of the most fascinating facets of nature found anywhere in the United States .

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