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Dwarfed by a giant lava tube, a woman hiker explores along rough and sharp dried lava on top of the remaining tube on the Seven Bridges trail in the Big Tubes area of Malpai National Monument in New Mexico. Ten thousand years ago Bandera Crater was formed with fluid lava flowing through this collapsed vent tube.
Guy looking into light in canyon slot
One of the stone grottoes in the Kungur ice cave (Perm region, Russia). Close-up. The red-blue illumination of the stones makes the grotto more mysterious. The unique landmark of the Urals.
View of a Salt Mine Cave next to the Salt formations in Garmsar of Iran
Lava Tunnel, Craters of the Moon National Monument and Preserve, Idaho - United States
Young Male Caver Posing in Cave
Stunning Verdes Cave with colorful illumination, Lanzarote, Canary Islands, Spain
Hercules Leg Cave at Lava Beds National Monument in California, USA.
Wupatki National Monument, Arizona, USA - March 7, 2020: Between 1100AD and 1200AD native people inhabited the plains between the Painted Desert and the San Francisco Peaks of Arizona. In an area so dry it would seem impossible to live, they built pueblos, harvested rainwater, grew crops and raised families. Their way of life was the key to survival in this harsh landscape. These people survived here, farming one of the warmest and driest places on the Colorado Plateau. They developed the skills to farm the land and endure hardship in an area where many would not. Today the remnants of their villages dot the landscape. These people, led by a ranger are examining a dwelling on East Mesa in Wupatki National Monument. The monument, established in 1924 to preserve this rich heritage, is near Flagstaff, Arizona, USA.
cave inside a volcano on the island of Lanzarote (Canary Islands)
Sandstone gorge hewn by a river, showing a smooth and windswept structure.
Kaklik Cave in Denizli, Turkey
Inside a lava tube in Craters of the Moon National Monument and Preserve in Idaho
Grotta delle Colonne presso la Cascata delle Marmore a Terni in Umbria
El Malpais is a National Monument in Western New Mexico
Various valleys and gullies of water at the bottom of Lake Cerkniška in Slovenia. The lake thus dries up and flows into underground rivers approximately every 50 years.
Deposits of the Taung Skull were blasted by lime workers from tufa deposits and Raymond Dart reconstructed sections of the skull in 1924. He identified them as  Australopithecus africanus, the first discovery of its kind. The site is part of the UNESCO Cradle of Humankind World Heritage Site. Shot at the Taung Skull Fossil Site at the Buxton Limeworks, in the Taung district of North West Province of South Africa.
Tea Kettle Cave in Good, Idaho.  This cave is open just like the top of a tea pot and is located in a hidden oasis in the southern Idaho desert in the western part of the United States.  Beautiful light rays shining into cave with dust particles floating in the sun.
The Cavaglia Glacier Garden\nView of Giants pots in Cavaglia Glacier garden
Cave \
Thousands of Egyptian Fruit Bats or Egyptian Rousettes roost and fly in massive, tightly packed groups and in a cave in Queen Elizabeth National Park.
A natural cave in the rock with uneven textured brown walls, the habitat of ancient a people
Crater's of the Moon National Monument
Arid desert Colorado hidden cave with sagebrush and blue sky in spring.
A man walking and exploring the cave
Lanzarote, Spain: lava tube with climbing tops
Carlsbad Caverns - National Park are hidden in the Chihuahuan Desert in souther New Mexico have stunning stalactites hanging from the roof of caverns.
Entrance to the Sentinel Cave in Lava Beds National Monument in California
Cliff cave dwelling with ladder.
Free Images: "bestof:NPS Photo by Dale Pate new monument mexico lava nps tube el national cave malpais"
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