Petrified Forest
A landscape where deep time lies fully on display, Petrified Forest National Park blends colorful badlands, vast grasslands, and one of the world’s largest and most vivid collections of petrified wood. Spanning more than 200 million years of geologic history, the park protects ancient fossils, ancestral Puebloan sites, habitat for desert animals, and a sweeping stretch of historic Route 66.
Official-source overview · detailed planning coverage is still being reviewed
At a glance
- State / territory
- Arizona
- Region
- Southwest
The official overview below is available now. Park-specific fees, distances, climate tables, and reviewed day plans are shown only when their supporting records have been reviewed. Check current access and arrangements with the park before travel.
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When to go
Petrified Forest National Park is a semi-arid grassland. Temperatures range from above 100° F (38° C) to well below freezing. About 10 inches (25.4 cm) of moisture comes during infrequent snow in the winter and often dramatic summer thunder-storms. Animals and plants are adapted to extremes in temperature and moisture. You should be ready too. Check out the forecast before you arrive and plan accordingly.
General official weather guidance; historical context, not a forecast.
Arrive and stay
Petrified Forest stretches north/south between I-40 and Hwy 180. There are two entrances into the park.***
***WESTBOUND I-40***Travelers should take Exit 311, drive 28 miles through the park to Hwy 180 at the south end. Travel 19 miles to return to I-40 via Holbrook.***
***EASTBOUND I-40***Travelers should take Exit 285 into Holbrook then travel 19 miles on Hwy 180 to the park's south entrance. Drive 28 miles north through the park to return to I-40.
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Conditions, access, reservations, and operating hours can change. This website is a planning resource and does not provide live conditions.
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Where this information comes from
Park overview information is drawn from identified official sources. Published guide facts, assumptions, and editorial decisions retain their own review records.
Source retrieved: 2026-10-01. This is not a live-conditions check.
National Park Service: Petrified Forest
Image credit: NPS Photo. See the image credits.
Data release 0 · Independent planning resource. Not affiliated with the National Park Service.