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Ancestral Puebloan - The Phantom Forests That Built Mesa Verde


Mesa Verde National Park (MVNP) in what is today southwestern Colorado is a UNESCO World Heritage site dedicated to the preservation and presentation of the amazing cliff dwellings and other structures built and used by Ancestral Puebloans from roughly A.D. 600 until the end of the 13th century.
Visitors to spectacularly beautiful sites such as Cliff Palace and Spruce Tree House find them mesmerizing, unforgettable, and thought-provoking. These and other cliff structures were handmade with millions of sandstone blocks, thousands of wooden beams for roofing elements, and copious amounts of adobe mortar, branches, and grasses. Even more remarkable, however, is that Ancestral Puebloans built these structures high up from the valley floor and below the mesa tops, in dry rockshelters that formed naturally in the region’s sandstone cliffs. ....

Cliff Palace , United States , Navajo Canyon , New Mexico , Chaco Culture National Historical Park , Mesa Verde , Chaco Canyon , Spruce Tree House , Mesa Verde National Park , David Smith , James Allen Lancaster , Robert Nichols , Ring Research , Laboratory Of Tree , University Of Arizona , Ancestral Puebloans , Four Corners , Ancestral Puebloan , Verde Ancestral Puebloan , Balcony House , Tree Ring Research , Schulman Old Tree , American Antiquity , Schulman Grove , Lancaster Old Tree , Lancaster Old ,

Oldest hardwood tree ever


The African baobab (
Adansonia digitata) is the only non-conifer ever recorded to reach in excess of 2,000 years old. As they do not produce wood with crossdatable rings, they can only be dated through the use of radiocarbon dating. The Panke Baobab in Zimbabwe, which had a circumference of 25.5 m (83 ft 7.9 in) and had nearly 400 m3 (14,126 cu ft) of wood and bark, was at least 2,450 (±40) years old when it collapsed and died in 2011. This not only makes it the oldest hardwood tree to be accurately measured but also the oldest known angiosperm (flowering plant). Several other individuals of this species have been dated to more than 1,500 years old. ....

Spring Mountains , United States , Great Basin , Sierra Nevada , Wheeler Peak , White Mountains , Tom Harlan , Edmundp Schulman , Las Vegas , Ring Research , Laboratory Of Tree , University Of Arizona , Panke Baobab , Tree Ring Research , வசந்த மலைகள் , ஒன்றுபட்டது மாநிலங்களில் , நன்று பேசின் , சியரா நெவாடா , சக்கர வாகனம் உச்சம் , வெள்ளை மலைகள் , டோம் ஹார்லன் , லாஸ் வேகாஸ் , மோதிரம் ஆராய்ச்சி , ஆய்வகம் ஆஃப் மரம் , பல்கலைக்கழகம் ஆஃப் அரிசோனா , மரம் மோதிரம் ஆராய்ச்சி ,