… was first proclaimed a national monument on this date in 1906.
Petrified Forest National Park is a surprising land of scenic wonders and fascinating science. The park features one of the world’s largest and most colorful concentrations of petrified wood, the multi-hued badlands of the Chinle Formation known as the Painted Desert, historic structures, archeological sites, and displays of 225 million year old fossils.
…The park is 93,533 acres, with a recently expanded boundary increasing the acreage to 218,533 acres.
Source: Petrified Forest National Park
The national monument became a national park in 1962.