Last Updated: May 2, 2026
We’d seen Petrified Forest National Park in photographs for years — those images of logs that look like wood but gleam with purple amethyst and red jasper — and we were skeptical. Would it really live up to the pictures? Driving from Prescott through Holbrook to reach the park, we weren’t sure what to expect. What we found left us completely speechless — and brought us back for a second visit years later. This is the story of the first one.
Petrified Forest National Park
Seeing so many petrified logs in one place — scattered across the desert floor as far as you can see — is genuinely one of the most remarkable sights in Arizona. The scale and abundance of it stops you cold. These aren’t a few token specimens in a glass case. There are thousands of them, lying where they fell 225 million years ago, now solid crystal.
One of the first things we noticed: dogs are allowed on all hiking trails in Petrified Forest National Park. This is extraordinarily rare in the National Park system, and Jake took full advantage. He explored every trail with great enthusiasm — the perfect hiking companion for a park that rewards slow, attentive walking.
How Petrified Wood Forms
Over 225 million years ago, this region sat near the equator and was covered by a dense tropical forest. Giant coniferous trees — up to 9 feet in diameter and 200 feet tall — dominated the landscape. When trees fell, they were washed into ancient river systems and buried under deep layers of sediment and volcanic ash. The lack of oxygen and the exclusion of insects by the surrounding mud dramatically slowed the normal decay process, preserving the wood’s cellular structure intact.
Over millions of years, silica-rich groundwater slowly infiltrated the buried wood, replacing the organic plant cells molecule by molecule with quartz crystal. Trace minerals determined the final colors: iron produced reds, oranges, and yellows; manganese created purples and blacks; pure silica gave whites and grays. Amethyst, yellow citrine, and smoky quartz all formed within the logs depending on local mineral conditions. When the Colorado Plateau was later uplifted and erosion exposed the buried logs, the quartz cracked along natural fracture lines — giving the logs their characteristic segmented appearance, as though they had been cleanly sawn.
The colors in many of the logs are extraordinary — brilliant purples, deep reds, honey golds, and pure whites that catch the light differently at every angle. Others look almost indistinguishable from real wood — same bark texture, same growth rings — but are solid stone through and through, weighing hundreds of pounds per foot.
The Painted Desert
The name “Painted Desert” dates back to 1540, when Spanish explorers searching for routes between the Rio Grande and the Pacific Coast passed through this region and called it El Desierto Pintado — the Painted Desert. It was an apt name then and remains perfectly accurate today. The Painted Desert runs throughout the broader Colorado Plateau — the high desert region spanning the Four Corners area of Utah, Colorado, Arizona, and New Mexico, which contains the greatest concentration of National Parks in the entire United States.
The colors come from iron and manganese compounds in the layered rock — the same minerals that color the petrified wood, operating on the surrounding landscape at a much larger scale. The terrain is classic badlands: soft sedimentary rock carved by wind and water into steep slopes, canyons, ravines, gullies, buttes, and hoodoos with minimal vegetation to slow the erosion. The palette ranges from deep lavender and cool gray to vivid red, burnt orange, and soft pink — often all visible within a single overlook view.
The intensity of the colors is genuinely difficult to capture in photographs — they shift dramatically with the angle and quality of the light, and early morning or late afternoon reveals tones that midday sun completely washes out. We hiked daily, coming back to the same overlooks at different times of day and finding them transformed each time.
Early People: 8,000 Years of Human History
The petrified logs are 225 million years old, but humans have been living in this landscape for at least 8,000 years. Ancestral Puebloan people occupied the region from roughly 650 to 1400 CE and left behind an extraordinary record of their presence in the form of petroglyphs — images carved through the dark desert varnish on rock surfaces to reveal the lighter stone beneath.
The petroglyphs here are thought to be up to 2,000 years old and depict a wonderful variety of figures — animals, humans, spirals, geometric patterns, and some images that are open to interpretation. One in particular drew our attention: it looks unmistakably like a large bird pecking at an unfortunate person. And another that, honestly, looks like an alien visitor. We’re not saying anything — but the Ancestral Puebloans clearly had a sense of storytelling, and possibly a sense of humor.
Jake was a willing and patient model throughout — always happy to pose at a viewpoint while we figured out the composition. He took the petroglyphs in stride.
Wildlife Sightings
Wildlife sightings added to an already remarkable visit. We spotted a pronghorn antelope on the open plateau — always a thrill, and a reminder of how wild this landscape remains despite the park infrastructure. And a pair of crows building a nest near one of the overlooks, completely unbothered by our presence, going about their architectural work with great seriousness. Sometimes the small moments are the ones that stay with you.
Petrified Forest at sunset. The light hits the crystal logs and the badland hills simultaneously — reds deepen, purples intensify, and the whole landscape seems to glow from within. It’s the kind of light that makes you forget you were planning to leave an hour ago.
Visitor Information
Petrified Forest National Park is located in northeastern Arizona along I-40, approximately 25 miles east of Holbrook. The park has two entrances — north off I-40 (Exit 311) and south off US-180 — connected by a 28-mile scenic park road. Open daily year-round; check current hours and fees at nps.gov/pefo. The America the Beautiful annual pass is accepted. All trails are dog-friendly on leash — one of the very few national parks with this policy. Do not remove any petrified wood — it is a federal offense.
We loved this park so much on this first visit that we returned years later — you can read about our second visit to Petrified Forest in 2022 for more trails, more geology, and the Route 66 story. Some places just keep calling you back.
