The Ultimate Guide to Petrified Forest National Park

See and explore one of the largest and most colorful petrified wood sites in the world

It isn’t the colorful landscapes, the winding trails, the fresh air, or even the wide-open spaces that make the Petrified Forest so interesting—though it offers all of those things. Petrified Forest is home to the world’s largest collection of petrified wood. Its lifecycle began 225 million years ago when an ancient forest was buried beneath a river system where it laid dormant for millennia.

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Fast forward to 60 million years ago—that is when the Colorado Plateau began uplifting to expose the trees to oxygen, fracturing them into large pieces that lay upon Earth today for us all to go and see. It’s amazing to look at. The exterior appears just like any wooden tree bark does but upon touch, it is the smoothest, hardest material you’ll ever feel. Flip it over and you’ll see a vibrantly colored, ornately designed interior made of quartz that glints with brilliance in every shift of light.

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Perhaps most remarkable is that anyone can pick up a piece and examine the effects of wood exposed to the forces of nature spanning millennia. Wrap your mind around that for a moment—you can hold in your hand a piece of Earth that is 225 million years old. That alone is incredible.

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But the wonder doesn’t stop there. The park’s north side is home to colorful badlands at the Painted Desert and Blue Mesa where I was the most enchanted. Here the blue, purple, and ivory sculpted hills are topped with pieces of quartz. There are both petroglyphs and ancient ruins in several areas of the park that tell the story of primitive cultures and peoples.

Related Article: Triassic World: Petrified Forest National Park

Petrified Forest National Park © Rex Vogel, all rights reserved

The Park’s fallen tree fossils mostly date from the Late Triassic Epoch—a massive 225 million years ago. That means that the T-Rex that lived only 65 million years ago was much closer to our time than these fossils. Other popular activities include hiking and horse riding in this vibrant and colorful wilderness.

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The sediments of the Late Triassic Epoch that contain all of these trees are part of the Chinle Formation. The Late Triassic was when dinosaur life was at its most spectacular and so this is one of the sites that dinosaur lovers should visit. This formation is stunningly colorful and is where the Painted Desert gets its name. There are some fossilized animals in this park—notably the large flying reptiles and phytosaurs.

Fun Fact: Pterodactyls are not dinosaurs

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Over 200 million years ago, this part of what is now Arizona was a lush landscape filled with flourishing trees and other kinds of vegetation. But this was destroyed in a large volcanic explosion and the remains of this forest were preserved and embedded in the volcanic ash and water.

And there is wind—amazing wind that continues to erode Earth, exposing more wood, and shaping what is already there. Like all of the parks, once I dug in and learned more about the reason the park was protected in the first place, I wanted to stay much, much longer.

Historic Route 66 in Petrified Forest National Park © Rex Vogel, all rights reserved

If history and science aren’t your things, there is another unique draw here—this is where you can get the best of American kitsch while stepping foot onto the Mother Road: America’s Historic Route 66. Route 66 in its original form is no longer in existence but at Petrified Forest, you can visit the only section of the famed road existing inside a national park.

Nearby in the town of Holbrook lives the classic Wigwam Motel—on the National Register of Historic Places—providing a glimpse into the mid-20th century golden age of travel.

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Route 66 is a classic destination that all should visit at least once in their lives. But the Mother Road won’t transport your mind’s eye to a place and time where ancient birds flew before dinosaurs roamed the planet hundreds of millions of years ago; for that experience, you’ll need to visit Petrified Forest, National Park. This is one of those places where time and age are your companions. One breath in and one lookout and you can truly sense and feel the tale of prehistoric life on Earth.

Related Article: 10 of the Best Scenic Drives in National Parks

After many millions of years of being buried, the sediment has been eroding and exposing the forest entombed within it. Today the petrified wood has been turned into quartz.

Painted Desert Inn, Petrified Forest National Park © Rex Vogel, all rights reserved

Pueblo sites

The park boasts more than just the Petrified Forest. There are 13,000 years of human history to discover at the park. One of the main human traditions includes a nearly 800-year-old 100 room dwelling. There are around 600 archeological sites in the national park including various petroglyphs. These lands had been inhabited by pueblos but it was abandoned by around 1400.

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Hiking

Hiking is one of the best ways to explore the Petrified Forest National Park and there are several designated hiking trails crisscrossing the park. These trails range from less than half a mile to about three miles.

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Tawa Trail

Length: 1.2 miles one way

Trailheads: Tawa Point and Painted Desert Visitor Center

Enjoy the tranquility of the grassland as the trail leads from scenic Tawa Point to the Painted Desert Visitor Center. In Hopi ideology, Tawa refers to the Sun Spirit, the Creator of the World. The Hopi are one of several current Native American groups who are connected to the rich and varied history of the Petrified Forest.

Painted Desert Rim Trail © Rex Vogel, all rights reserved

Painted Desert Rim Trail

Length: 1 mile round trip

Trailheads: Tawa Point and Kachina Point

This unpaved trail winds through the rim woodland, a place for chance encounters with many species of plants and animals and spectacular views of the Painted Desert.

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Puerco Pueblo Trail

Length: 0.3 miles loop

Trailhead: Puerco Pueblo parking area

A paved walk amidst the remains of a hundred-room pueblo occupied by the ancestral Puebloan people over 600 years ago. Petroglyphs can be viewed along the south end of the trail. Please do not climb on the boulders or walls and do not touch the petroglyphs.

Related Article: The Ultimate Guide to Arizona Public Lands

Blue Mesa Trail © Rex Vogel, all rights reserved

Blue Mesa Trail

Length: 1 mile loop

Trailhead: Blue Mesa sun shelter

Descending from the mesa, this alternately paved and gravel trail loop offers the unique experience of hiking among badland hills of the bluish bentonite clay as well as petrified wood. Numerous plant and animal fossils have been found by paleontologists in the sedimentary layers of Blue Mesa.

Crystal Forest Trail © Rex Vogel, all rights reserved

Crystal Forest

Length: 0.75 mile loop

Trailhead: Crystal Forest parking area

Named for the presence of beautiful crystals that can be found in the petrified logs, this trail offers one of the best opportunities to experience the petrified wood deposits.

Giant Logs Trail © Rex Vogel, all rights reserved

Giant Logs

Length: 0.4 mile loop

Location: Behind Rainbow Forest Museum

Giant Logs features some of the largest and most colorful logs in the park. “Old Faithful” at the top of the trail is almost ten feet wide at the base. A trail guide is available at Rainbow Forest Museum.

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Accommodation

No accommodation is available within the park. Boondocking, primitive camping, and pulling off to spend the night in a parking area are not permitted.

The gateway to the park is the town of Holbrook. It is around 20 miles to the west of the park and offers a full range of accommodation options. We used OK RV Park as our home base while exploring Petrified National Park. Easily accessible from I-40, the 150 pull-through gravel sites offer water and sewer connections and the choice of 30 or 50 amp electric service.

Related Article: Why Arizona is the Ultimate Road Trip Destination

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Fact Box

Size: 93,533 acres with more than half as dedicated Wilderness area

Date established: December 9, 1962 (established as a National Monument by President Teddy Roosevelt in 1906)

Location: Northeast Arizona (the nearest town is Holbrook)

Park elevation: Averages 5,400 feet

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Weather: Petrified Forest National Park is a semi-arid grassland. Temperatures range from above 100 degrees to well below freezing. About 10 inches of moisture comes during infrequent snow in the winter and often violent summer thunderstorms. Check out the forecast before you arrive and plan accordingly.

Operating hours: Every day year-round (closed on Thanksgiving Day and Christmas Day). Park hours are 8 am to 6 pm. You must enter the park before 5 pm. Remember that this is Mountain Standard year-round as Arizona does not observe Daylight Saving Time.

Park entrance fee: $25 per private vehicle, valid for 7 days

Recreational visits (2021): 590,334

Roads: Historic Route 66 and I-40 run through the park

Wild animals in the park: Bobcats, pronghorns, coyotes, and over 200 species of birds

How the park got its name: Petrified Forest was named after a wilderness of 225 million-year-old trees that have, over time, turned into solid quartz (and not from being petrified with fear)

Painted Desert, Petrified Forest National Park © Rex Vogel, all rights reserved

Iconic site in the park: The colorful Painted Desert that stretches from the Grand Canyon is the best-known landmark at Petrified Forest and it greets you right as you cross through the northern boundary of the park. It was given its name by Spanish explorers who thought the clay and mudstone badlands looked like a sunset painted onto the landscape. This landmark is a protected Wilderness area so you won’t be exploring its interior by car (although there are viewpoints that you can pull up to). The best way to explore it is to head out on foot on a 1-mile unpaved loop trail where you can see the picturesque rim from a different vantage point.

Painted Desert Inn, Petrified Forest National Park © Rex Vogel, all rights reserved

A must-see cultural stop nearby is at the 100-year-old Painted Desert Inn where you can view in real life restored mural art created by famed Hopi artist Fred Kabotie.

Did you know?

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Petrified Forest National Park has a world class fossil record with artifacts dating to the Triassic Period, 200 million years ago, before the Jurassic Period when dinosaurs roamed our home planet. The Triassic era is known as the “Dawn of the Dinosaurs.”  

Petrified Forest is home to fossils of massive crocodile-like creatures known as Phytosaurs as well as remnants from 13,000 years of human history including the remains of villages, tools, and grinding stones.

Petrified Forest National Park © Rex Vogel, all rights reserved

Archeological relics prove that humans have lived in the area for more than 10,000 years. 

Some of the trees in the park measure up to 200 feet—about the length of the wingspan of a 747 jet. 

Petrified Forest is the only national park where a segment of Route 66 exists.   

Painted Desert Inn, Petrified Forest National Park © Rex Vogel, all rights reserved

On the wall of the historic Painted Desert Inn you can visually wander along the path of the Native American people in the area as depicted in a painting by famed Hopi artist, Fred Kapotie. 

Worth Pondering…

Quite a forest of petrified trees was discovered today…they are converted into beautiful specimens of variegated jasper. One trunk was measured ten feet in diameter, and more than one hundred feet in length…

—Lieutenant Amiel Weeks Whipple, 1853

Triassic World: Petrified Forest National Park

The Real “Triassic” Park

The colorful rock layers of northeastern Arizona’s Petrified Forest National Park form a visual display of eroded badlands, dating to the Triassic.

Petrified Forest is known for its treasure trove of fossilized logs, exposed after eons of erosion by wind and water. About 60 million years ago, tectonic action pushed the Colorado Plateau upwards, exposing the layers of rock containing the park’s Triassic fossils.

Petrified Forest National Park © Rex Vogel, all rights reserved

The park is composed of two sections: the north section is a colorful badlands called the Painted Desert, and the southern section contains most of the petrified wood.

Petrified Forest National Park © Rex Vogel, all rights reserved

The park consists of a 28-mile road that offers numerous overlooks and winds through the mesas and wilderness. Visitors can also choose to hike a variety of trails ranging from easy to difficult.

Petrified Forest National Park © Rex Vogel, all rights reserved

The land below is awash in burnt sienna, deep maroon, dusty purple, and sprinkled here and there with green plants.

Petrified Forest, a surprising realm of fascinating landscape and science, was set aside as a national monument in 1906 to preserve and protect the petrified wood for its scientific value. The Painted Desert was added later, and in 1962, the entire monument received national park status.

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It is recognized today for having so much more, including a broad representation of the Late Triassic paleo-ecosystem, significant human history, clear night skies, fragile grasslands ecosystem, and unspoiled scenic vistas.

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More than 200 million years ago, flourishing trees and vegetation covered much of this area of northeastern Arizona. But volcanic lava destroyed the forest, the logs washed into an ancient river system and were embedded into sediment comprised of volcanic ash and water. Oxygen was cut off and decay slowed to a process that would now take centuries.

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Minerals, including silica dissolved from volcanic ash, absorbed into the porous wood over hundreds and thousands of years, and crystallized replacing the organic material as it broke down over time. Sometimes crushing or decay left cracks in the logs. Here large jewel-like crystals of clear quartz, purple amethyst, yellow citrine, and smoky quartz formed.

Petrified Forest National Park © Rex Vogel, all rights reserved

Erosion set the logs free millions of years later, revealing the petrified wood made mostly of quartz—that visitors to the park come to see.

Petrified Forest National Park © Rex Vogel, all rights reserved

Though only seven species of tree have been identified through petrified wood, over 200 species of plants have currently been identified from other Triassic fossils, such as leaves, pollen, and spores.

Petrified Forest National Park © Rex Vogel, all rights reserved

The best way to enjoy and experience Petrified Forest National Park is on foot. Designated trails range in length from less than a half-mile to almost three miles.

Petrified Forest National Park stretches north and south between I-40 and U.S. Highway 180. There are two entrances into the park. Your direction of travel dictates which entrance is best to use.

Petrified Forest National Park © Rex Vogel, all rights reserved

Westbound I-40 travelers should take Exit 311, drive the 28 miles through the park and connect with Highway 180 at the south end. Travel 19 miles on Highway 180 North to return to I-40 via Holbrook.

Petrified Forest National Park © Rex Vogel, all rights reserved

Eastbound I-40 travelers should take Exit 285 into Holbrook then travel 19 miles on U.S. Highway 180 South to the park’s south entrance. Drive the 28 miles north through the park to return to I-40.

Petrified Forest National Park © Rex Vogel, all rights reserved

Many of the features at Petrified Forest are on a scale best appreciated by leaving the car. Plan enough time to walk among the fossil logs and Painted Desert badlands.

For a half-day visit, follow the park road from the Rainbow Forest Museum toward Pintado Point. If you can stay longer, include a walk to Agate House, take the trail into the Blue Mesa badlands, and consider a hike in the Petrified Forest National Wilderness Area.

Worth Pondering…

The way in which many Paleozoic life forms disappeared towards the end of the Permian Period brings to mind Joseph Hayden’s Farwell Symphony where, during the last movement, one musician after the other takes his instrument and leaves the stage until, at the end, none is left.

—Curt Teichert, 1990