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Petrified Forest National Park, Blue Mesa, Blue Mesa Trail, sedimentary layers of bluish bentonite clay
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Sedimentary layers of bluish bentonite clay with petrified wood, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America
Sedimentary layers of bluish bentonite clay, The Tepees, Petrified Forest National Park, Arizona, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Agate Bridge, a petrified log spanning ravine, Petrified Forest National Park, Arizona, United States of America, North America
Sedimentary layers of bluish bentonite clay, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America
Common raven (Corvus corax), Petrified Forest National Park, Arizona, United States of America, North America
Blue Mesa, Petrified Forest National Park, Arizona, USA
Blue Mesa, Petrified Forest National Park, Arizona, USA, North America
Petrified Forest National Park, Arizona, USA
The landmark in Petrified Forest National Park called Squared Off Butte, a marker on the way to Onyx Bridge, Arizona, United States of America, North America
A section of Petrified Forest National Park called Angel Garden, northwest of the Onyx Bridge, Arizona, United States of America, North America
A hoodoo spire shaped like a Horse Head, in the valley below Blue Mesa of Petrified Forest National Park, Arizona, United States of America, North America
The Billings Gap Overlook on the east side of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
View of Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America
Bird petroglyph, Petrified Forest National Park, Arizona, United States of America, North America
Shattered pieces of petrified wood in a sandy wash in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
View of the Petrified Forest National Park from the Long Logs Trail on the south end of the park, Arizona, United States of America, North America
Towering Hoodoos in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
The pedestal of Eagle Nest Rock in Jasper Forest Petrified Forest National Park, the rock fell down in 1941 due to heavy rain, Arizona, United States of America, North America
A Hoodoo of expansive clay called Bentonite in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
Shattered pieces of petrified wood in a sandy wash in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
The boundary fence on the east side of Petrified Forest National Park, Arizona, United States of America
An island of rock in an unnamed canyon that leads to Dead Wash in Petrified Forest National Park, Arizona, United States of America
Cliff view of Dead Wash Valley in Petrified Forest National Park, at sundown, Arizona, United States of America
Bighorn sheep petroglyph, Petrified Forest National Park, Arizona, United States of America, North America
Large pieces of petrified wood in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
Mounds and cliffs of expansive clay called Bentonite in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
The Lithodendron Wash in the Petrified Forest National Park, Arizona, United States of America, North America
A rocky pile in Petrified Forest National Park called Newspaper Rock, where some rocks have petroglyphs, Arizona, United States of America, North America
A red pool of salty water along the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America
Hills of Bentonite Clay called Teepees at the start of the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America
Huge formations of Bentonite Clay called the Teepees in the Petrified Forest National Park, Arizona, United States of America, North America
A large petrified log along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America
A shattered petrified log in a desolate area of Petrified Forest National Park, Arizona, United States of America, North America
A large petrified log along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America
Formation in the Petrified Forest National Park called a Teepee viewed from the main road that runs through the park, Arizona, United States of America, North America
Panorama view of the Painted Desert from Tawa Point in Petrified Forest National Park, Arizona, United States of America, North America
Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America
View from a side canyon along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America
Mushroom shaped formations along the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America
Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America
The eastern edge of the Clam Bed Mesa along the Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America
Panorama of the setting sun at the First Forest in Petrified Forest National Park, Arizona, United States of America, North America
The eastern edge of the Clam Bed Mesa along the Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America
One of many fossil filled boulders in the Clam Beds along Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America
A ridge in the Devil's Playground of crumbling hoodoos that resemble Goblins,Petrified Forest National Park, Arizona, United States of America, North America
An old windmill marking the boundary of the Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America
A ridge in the Devil's Playground of crumbling hoodoos that resemble Goblins, Petrified Forest National Park, Arizona, United States of America, North America
Panorama of a ridge in the Devil's Playground of crumbling hoodoos, Petrified Forest National Park, Arizona, United States of America, North America
Panorama of a ridge in the Devil's Playground of crumbling hoodoos, Petrified Forest National Park, Arizona, United States of America, North America
Sand Castle formations on the edge of the Red Basin in Petrified Forest National Park, Arizona, United States of America, North America
Balanced rock that resembles a toadstool, petrified wood scattered around the formation, Petrified Forest National Park, Arizona, United States of America, North America
Balanced rock that resembles a toadstool, petrified wood scattered around the formation, Petrified Forest National Park, Arizona, United States of America, North America
A stone garden of Toadstool rocks on the south end of Keyhole Mesa in Petrified Forest National Park, Arizona, United States of America, North America
Balanced rock that resembles a toadstool, petrified wood scattered around the formation, Petrified Forest National Park, Arizona, United States of America, North America
Keyhole Mesa, named for a keyhole shaped cave on its north side, in the First Forest of Petrified Forest National Park, Arizona, United States of America, North America
A giant petrified log on a sandstone pedestal on the edge of the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
A rock hoodoo shaped like a horse head, along the base of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
Panorama of three hoodoos shaped like kings, on the edge of the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
An eroded sandstone formation called a Sandcastle, below the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
A sheer cliff of rock jutting out from the Blue Mesa along the Billings Gap Trail in Petrified Forest National Park, Arizona, United States of America, North America
Flat top hoodoo on the edge of a cliff along the Billings Gap Trail on Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America
A long formation of purple Bentonite clay called the Purple Peninsula, in Petrified Forest National Park, Arizona, United States of America, North America
Man enjoying the view along The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
Beautiful sight on The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
Beautiful sight on The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
Woman hiking along The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
Hills of blood red bentonite clay below Kachina Point in Petrified Forest National Park, Arizona, United States of America, North America
Blood red ridges of Bentonite clay on the east side of Tiponi Point in Petrified Forest National Park, Arizona, United States of America, North America
Field of hoodoos in Goblin Garden in the Flat Tops of Petrified Forest National Park, Arizona, United States of America, North America
A dome shaped hill of purple bentonite with a rocky flat top in Petrified Forest National Park, Arizona, United States of America, North America
A dry waterfall made of purple bentonite in the Flat Tops of Petrified Forest National Park, Arizona, United States of America, North America
Large storm approaching Blue Mesa in Petrified Forest National Park, viewed from the Red Basin Trail, near Holbrook, Arizona, United States of America, North America
Three hoodoos in a triangular formation in Devil's Playground called the Unholy Trinity, Petrified Forest National Park, Arizona, United States of America, North America
Hoodoo formations in the Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America
A tall hoodoo called the Leviathan in Devil's Playground, Petrified Forest National Park, Arizona, United States of America, North America
A hoodoo ridge in Devil's Playground at Petrified Forest National Park, Arizona, United States of America, North America
Boulders in Devil's Playground called Gnomes of Desolation, Petrified Forest National Park, Arizona, United States of America, North America
Field of boulders in Devil's Playground within Petrified Forest National Park, Arizona, United States of America, North America
South side of Damnation Mesa on the north end of Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America
Three hoodoos in a triangular formation in Devil's Playground called the Unholy Trinity, Petrified Forest National Park, Arizona, United States of America, North America
A ridge of hoodoos that resemble dog heads in Devil's Playground at Petrified Forest National Park, Arizona, United States of America, North America
Towering pillars of rock in Devil's Playground at Petrified Forest National Park, Arizona, United States of America, North America
A rock bridge in Devil's Playground where Trolls could hide, Petrified Forest National Park, Arizona, United States of America, North America
The desolate Hellscape of Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America
A dry waterfall ledge on the south end of Agate Plateau overlooking Jasper Forest in Petrified Forest National Park Arizona.
A hoodoo near a natural Spring west of Pintado Point in Petrified Forest National Park Arizona called the Guardian.
Ancient Indian petroglyphs on a boulder near Martha's Butte in Petrified Forest National Park Arizona.
Ancient Indian petroglyphs on a boulder near Martha's Butte in Petrified Forest National Park Arizona.
Giant pieces of broken petrified wood in Jasper Forest at Petrified Forest National Park Arizona.
The paved trail that leads to the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
A warning sign to stay on the trail to the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
Closeup of the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
A warning sign to stay on the trail to the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
A divide in the trail loop for the Giant Logs trail at Petrified Forest National Park with the Rainbow Forest Museum on upper left, Arizona, United States of America, North America