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Sign along the path to the Long Logs Trail, marking the Jim Camp Wash along the main road of Petrified Forest National Park, Arizona, United States of America, North America
The map sign at the gateway for the Long Logs Trail and Agate House in Petrified Forest National Park, Arizona, United States of America, North America
The sun shade shelter along the Long Logs Trail at Petrified Forest National Park, Arizona, United States of America, North America
A circular walkway for the Long Logs Trail in Petrified Forest National Park, Arizona, United States of America, North America
Blackwater Tall Trees trail in New Forest National Park, Hampshire, England, United Kingdom, Europe
Naji Ravine just south of Naji Point on the North Rim of Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Cliff views from the edge of Naji Point on the North Rim of Grand Canyon, with Cape Final in the distance, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View of landscape from Curbar Edge, Peak District National Park, Baslow, Derbyshire, England, United Kingdom, Europe
Watchman mountain, Watchman trail, Zion National Park, Utah, United States of America, North America
The west entrance of Supai Tunnel on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
The gate for the Campbell Draw Tank, Coconino National Forest, Arizona, United States of America
Hiker on a trail above Langdale, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe
View from a side canyon along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America
Adult hoary marmot (Marmota caligata), on the Skyline Trail, Mount Rainier National Park, Washington State, United States of America, North America
Temperate rain forest on the Maple Glade Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Fall color change amongst the trees and shrubs on the Rock Creek Trail in Denali National Park, Alaska, United States of America, North America
A stream running through the Mossy Cave Trail in Bryce Canyon National Park, Utah, United States of America, North America
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
Game guards patrolling on elephant back, Kaziranga National Park, Assam state, India, Asia
El Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
Calanque d'En-Vau in Calanques National Park, Cassis, Bouches-du-Rhone, French Riviera, Provence-Alpes-Cote d'Azur, France, Europe
Calanque d'En-Vau in Calanques National Park, Cassis, Bouches-du-Rhone, French Riviera, Provence-Alpes-Cote d'Azur, France, Europe
Suilven, Assynt, Sutherland, Highlands, Scotland, United Kingdom
Fairyland Point and hoodoos, Bryce Canyon National Park, Utah, United States of America
Fairyland Point and hoodoos, Bryce Canyon National Park, Utah, United States of America
Aurora borealis (Northern Lights) on Kungsleden (Kings Trail), Abisko National Park, Lapland, Arctic Circle, Sweden, Scandinavia, Europe
A red pool of salty water along the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America
Caution sign on the Lady Bird Johnson Trail in Redwood National Park, UNESCO World Heritage Site, California, United States of America, North America
Lichen-covered trees on the Marymere Falls Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
View along the Virgin River to Angels Landing from the Emerald Pools Trail, autumn, Zion National Park, Utah, 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
Hermit Creek Canyon viewed from Dripping Springs Trail in the Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Hooker Glacier Lake in the shadow of Mount Cook (Aoraki), Hooker Valley Trail, Mount Cook National Park, UNESCO World Heritage Site, Southern Alps, South Island, New Zealand, Pacific
Giant redwoods on the Lady Bird Johnson Trail in Redwood National Park, UNESCO World Heritage Site, California, United States of America, North America
View from the Pa'rus Trail across woodland to the Towers of the Virgin, autumn, Zion National Park, Utah, 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
A sign along the main road pointing the way to the Long Logs Trail, and Agate House, Petrified Forest National Park, Arizona, United States of America, North America
View along the slope and hiking trail up towards the Red Crater Volcano, on Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
View of Thor's Hammer from the Navajo Loop Trail in Bryce Canyon National Park, Utah, United States of America, North America
An adult California condor in flight on Angel's Landing Trail in Zion National Park, Utah, United States of America, North America
Fourth lake of valley of Five Lakes trail, Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Alberta, Canada, North America
View of Escalante Butte in the Grand Canyon from the Tanner Trail just before sundown, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Woman in Desert Loop Trail in Carlsbad Caverns National Park, New Mexico, 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
Hiking in the Sawtooth Mountains, Sawtooth Wilderness, Sawtooth National Recreation Area, Rocky Mountains, Idaho, United States of America, North America
Giant redwood trees on the Trillium Trail, Redwood National and State Parks, UNESCO World Heritage Site, California, United States of America, North America
View along the Pa'rus Trail to Mount Spry and the East Temple, autumn, Zion National Park, Utah, 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
A scenic overlook on the west side of the Giant Logs Trail at Petrified Forest National Park, Arizona, United States of America, North America
Trail riding, Bryce National Park, Utah, USA
Man cross-country skiing, Puez Odle National Park, Dolomites, South Tirol, Trentino-Alto Adige, Italy, Europe
The North Valley below the Blue Mesa 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
Early light on Mount Rainier from the Burroughs Mountain Trail, Mount Rainier National Park, Washington State, United States of America, North America
Dense ferns on the Marymere Falls Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
View of couple on trail at Storms River Mouth, Tsitsikamma National Park, Garden Route National Park, South Africa, Africa
A scenic overlook on the west side of the Giant Logs Trail at Petrified Forest National Park, Arizona, United States of America, North America
The gateway to the Long Logs Trail and Agate House in Petrified Forest National Park, Arizona, United States of America, North America
View of a bentonite hill along the Long Logs Trail in Petrified Forest National Park, Arizona, United States of America, North America
A dry waterfall on the west side of Hamilili Point, Hamilili being a Zuni word for petrified wood, next to a hoodoo on the south end of Petrified Forest National Park, Arizona, United States of America, North America
SpaceX Starlink Falcon 9 rocket launch as seen from the National Geographic Venture in the Sea of Cortez, Mexico, North America
Hikers amongst hoodoo formations on the Sunrise Point Trail in Bryce Canyon National Park, Utah, United States of America, North America
Aurora borealis (Northern Lights) on Kungsleden (Kings Trail), Abisko National Park, Lapland, Arctic Circle, Sweden, Scandinavia, Europe
Waterfall on the Marymere Falls Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, 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
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
Woman hiking along The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
View of Castleton village in the Hope Valley, Peak District National Park, Derbyshire, England, United Kingdom, Europe
Trail to Angels Landing, Zion National Park, Utah, United States of America, North America
A gnarled tree trunk among the colourful pinnacles and hoodoos on the Peekaboo Trail in Bryce Canyon National Park, Utah, 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 Giant Petrified Logs of Petrified Forest National Park, located along a trail behind the Rainbow Museum, Arizona, United States of America, North America
View over Bryce Amphitheatre from the Rim Trail at Bryce Point, Bryce Canyon National Park, Utah, 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
Early light on Mount Rainier from the Burroughs Mountain Trail, Mount Rainier National Park, Washington State, United States of America, North America
Early light on Mount Rainier from the Burroughs Mountain Trail, Mount Rainier National Park, Washington State, United States of America, North America
A divide in the trail leading to the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
A paved walkway leading to the entrance of the Long Logs Trail in Petrified Forest National Park, Arizona, United States of America, North America
View of hoodoo formations from the Navajo Loop Trail in Bryce Canyon National Park, Utah, United States of America, North America
A mountain biker descends the trail from The Old Man of Coniston in the Lake District National Park, Cumbria, England, United Kingdom, Europe
View of Navajo sandstone formations from Angel's Landing Trail in Zion National Park, Utah, United States of America, North America
An island of rock just off the Billings Gap Trail at Petrified Forest National Park, Arizona, United States of America, North America
Great blue heron (Ardea herodias), standing alert beside trail in Shark Valley, Everglades National Park, Florida, United States of America, North America
A woman takes a break from hiking the trail in El Chalten National Park to take in the view, Lake Vied, Patagonia, Argentina, South America
Hiker on a mountain trail, Barre des Ecrins, Ecrins National Park, French Dauphine Alps, Haute Alpes, France, Europe
Waterfall, lake and blue sky, Petrohue Los Enamorados Trail, Vicente Perez Rosales National Park, Spring, Lakes District, Chile, South America
Coronada Butte viewed from the New Hance Trail on the south rim of the Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Man hiking along the Red Reef Trail, Red Cliffs National Conservation Area, Utah, United States of America, North America
Giant redwoods on the Lady Bird Johnson Trail in Redwood National Park, California, United States of America, North America
Hiker amongst giant redwood trees on the Trillium Trail, Redwood National and State Parks, UNESCO World Heritage Site, California, United States of America, North America
Sign marking the historic Honeymoon Trail in the 7 Mile Draw area of the Vermilion Cliffs National Monument, Arizona, United States of America, North America
View of trail lights on Ladybower Reservoir bridge at dusk, Peak District National Park, Derbyshire, England, United Kingdom, Europe
Navajo sandstone in Lower Calf Creek Falls Trail, Grand Staircase-Escalante National Monument, Utah, United States of America, North America
Hikers amongst hoodoo formations on the Fairyland Trail in Bryce Canyon National Park, Utah, United States of America, North America
View of hoodoo formations from the Fairyland Trail in Bryce Canyon National Park, Utah, United States of America, North America
View to Sinking Ship Mesa from the Rim Trail at Bryce Point, sunset, Bryce Canyon National Park, Utah, United States of America, North America
Hiker walking on the Alpine circuit trail, Lake O'Hara, Yoho National Park, UNESCO World Heritage Site, Canadian Rockies, Alberta, Canada, North America
75 Mile Creek from the Tanner Trail in the Grand Canyon, with Lipan Point on the upper left and Escalante Butte on the upper right, Grand Canyon National Park, UNESCO World Heritage Site, 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