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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

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

Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America

Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America

Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America

A canyon that drains into Dead Wash, Petrified Forest National Park, Arizona, United States of America

A canyon that drains into Dead Wash, Petrified Forest National Park, Arizona, United States of America

An unnamed canyon that leads into Dead Wash at Petrified Forest National Park, Arizona, United States of America

An unnamed canyon that leads to Dead Wash in 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

Patches of snow in the shade of a hill in Dead Wash at Petrified Forest National Park, Arizona, United States of America

Boulder pile in a valley leading to Dead Wash in Petrified Forest National Park, Arizona, United States of America

Boulder pile in a valley leading to Dead Wash, Petrified Forest National Park, Arizona, United States of America

Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America

An old Model-T placed as a marker for the Route 66 Road Alignment 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

Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America

Horseshoe Falls, Mount Field National Park, UNESCO World Heritage Site, Tasmania, Australia, Pacific

Boardwalk through temperate rainforest, Cradle Mountain-Lake St. Clair National Park, UNESCO World Heritage Site, Tasmania, Australia, Pacific

Bighorn sheep petroglyph, Petrified Forest National Park, Arizona, United States of America, North America

Pomeroy Tanks near Sycamore Falls, located in the Kaibab National Forest near Williams, 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

Tourist admiring the ice sculptures lit by moon standing in deep snow, Riisitunturi National Park, Posio, Lapland, Finland, Europe

Lake Moraine at sunrise, long exposure, Banff National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

Hiker with backpack enjoying watching the Aurora Borealis (Northern Lights) over frozen trees, Riisitunturi National Park, Posio, Lapland, Finland, Europe

View of Wet Beaver Creek off of the Bell Trail in Coconino National Forest, Arizona, United States of America

Boundary gate and cattle-proof fence between Coconino National Forest and Wet Beaver Creek Wilderness, Arizona, United States of America

Boundary gate and cattle-proof fence between Coconino National Forest and Wet Beaver Creek Wilderness, Arizona, United States of America

The grassland prairie on the summit of White Mesa in Coconino National Forest, Arizona, United States of America

Wet Beaver Creek Canyon viewed from the south end of White Mesa in Coconino National Forest, Arizona, United States of America

Casner Canyon in Wet Beaver Creek Wilderness viewed from White Mesa summit, in Coconino National Forest, Arizona, United States of America

A twisted very old Bristlecone Pine (Pinus longaeva), on sage brush covered slopes of dolomite limestone, in the Ancient Bristlecone Pine Forest Park, Inyo National Forest, Bishop, California, United States of America, North America

A sign along State Route 64 in Arizona directing travelers in Grand Canyon National Park, Arizona, USA

Autumn colours and sunshine over Brandlehow and Manesty wood, Derwent Water, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

High voltage power lines stretching across Johnson Canyon in the Kaibab National Forest of Arizona, USA

An artificial pond for cattle called Rods Winter Camp Tank in the Kaibab National Forest of Arizona, USA

A metal retaining wall holding up the Johnson Canyon Railroad grade that has been damaged, Kaibab National Forest of Arizona, USA

View from below the rim of the giant sinkhole known as Johnson Crater in the Kaibab National Forest near Ash Fork Arizona, USA

View from below the rim of the giant sinkhole known as Johnson Crater in the Kaibab National Forest near Ash Fork Arizona, USA

View from below the rim of the giant sinkhole known as Johnson Crater in the Kaibab National Forest near Ash Fork Arizona, USA

View from below the rim of the giant sinkhole known as Johnson Crater in the Kaibab National Forest near Ash Fork Arizona, USA

Sport Utility Vehicle traveling on Forest Service Road 709 in the Kaibab National Forest of Arizona, USA

Sport Utility Vehicle traveling on Forest Service Road 709 in the Kaibab National Forest of Arizona, USA

The Thirteen Mile Cattle Tank off of Corva Road in the Kaibab National Forest near Ash Fork Arizona, USA

The Thirteen Mile Cattle Tank off of Corva Road in the Kaibab National Forest near Ash Fork Arizona, USA

A livestock corral for the Thirteen Mile Cattle Tank off of Corva Road, Kaibab National Forest, Arizona, USA

A livestock corral for the Thirteen Mile Cattle Tank off of Corva Road, Kaibab National Forest, Arizona, USA

Wildflowers, fireweed (willowherb) near Bow Lake, Icefields Parkway, Banff National Park, UNESCO World Heritage Site, Canadian Rockies, Alberta, Canada, North America

Boa, Acrantophis madagascariensis, Strict Nature Reserve of Lokobe, National Park, Nosy Be island, Republic of Madagascar, Indian Ocean

Male Black lemur, Strict Nature Reserve of Lokobe, National Park, Nosy Be island, Republic of Madagascar, Indian Ocean

Footbridge crossing Nant Gwyd and Llynnau Mymbyr at sunrise with morning mist, Capel Curig, Snowdonia National Park, Wales, United Kingdom, Europe

Bracklinn Falls, Callander, Loch Lomond and Trossachs National Park, Stirling, Scotland, United Kingdom, Europe

Bracklinn Falls, Callander, Loch Lomond and Trossachs National Park, Stirling, Scotland, United Kingdom, Europe

The fire watchtower on the summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

An information sign on the summit of Apache Maid Mountai, Coconino National Forest, Arizona, United States of America

Fisheye view from below the fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

View from second deck of fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

View from second deck of fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

Coconino National Forest from the southwest summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

Road to the summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

The frozen Campbell Draw Tank with approaching snow storm, Coconino National Forest, Arizona, United States of America

A warning sign stating that the road can be closed seasonally, Coconino National Forest, Arizona, United States of America

A sign marking the boundary of Jacob Lake, a settlement within the Kaibab National Forest in northern Arizona.