Adventure complete! Arriving back to their truck after 16 days on the John Muir Trail.
Sierra Nevada, California
1990
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Mountain ranges called Sierra Nevada.
by granadamaps
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"WINTER SUNRISE"
SIERRA NEVADA FROM LONE PINE
ANSEL ADAMS | CALIFORNIA, 1944
[gelatin silver print | 15 x 19 1/8"]
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Kauri trees aren't only old but also enormous. A Giant Kauri tree in Waitakere Ranges Regional Park near Auckland, New Zealand.
In search of the Old Ones: Where to find the world's longest-lived trees
The Fortingall Yew. In a small church yard in Perthshire sits a yew tree which has been growing for thousands of years. Experts haven’t been able to gauge the exact age of this incredible tree but it’s thought to be somewhere between 3,000 and 9,000 years old.
Of some 140,000 species of woody plants on the planet, only about 25-30 can, without human assistance, produce specimens that reach the age of 1,000 years or older. Of those millennials, only about 10 can reach 2,000 years. And of those supermortals – all of them conifers – only three can produce trimillennials. Only one can produce quadrimillennials.
Humans have a long history of venerating elderflora (old trees) and megaflora (big trees). They have an equally long history of burning and felling them
The gnarled, slow-growing Bristlecone pine of the Great Basin are thought to be some of the oldest living trees on the planet
In California, one of these hardy pines has survived for 4,800 years
A Fitzroya Cupressoides tree located in Chile’s Alerce Costero National Park (above🔼), is more than 5000 years old.
That would make this tree, known as the Alerce Milenario, the world’s oldest known tree.
In Sierra Nevada. a number of Mariposa Grove's Giant Sequoias have been determined to be over 3,000 years old.
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Gnarled tree, Sierra Nevada, 1950 - by Donald Ross (1912 - 1999), American
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A young man poses at the entrance to the Sequoia National Park Trail Crest on Mt Whitney.
Sierra Nevada, California
1963
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Remarkable rocks of Pine Creek Pass, Sierra Nevada Mountains, California
Pine Creek Pass is a less-used trailhead in the Eastern Sierra of California. It's a steep slog of about 3,500 vertical feet in about 6 miles, ending at just over 11,000 feet. The scenery is remarkable, but so are the rocks.
This an unnamed pinnacle of dark gabbro which has been intruded by younger granite bands. The gray cliff to the right is intruded by the same younger granite bands!
Fractures in the gabbro of the stripy mountain filled with feldspar crystals (formed when liquid). The lighter band is offset slightly by the white vein, which shows lateral movement across that vein when it was forming. These are called en-echelon fractures.
Younger granite intruding (as bands) older granodiorite and a xenolith eclogite inclusion - a chunk of unrelated rock carried by the original melted granodiorite (complex relationships here!).
Granodiorite polished smooth by the abrasive action of glaciers during the last Ice Age (~21,000 years ago in this area).
Outcrop of glacially polished granodiorite.
Glacially polished granodiorite with a thick intrusion (dike) of pink granite that has been offset laterally by a younger and thinner dike of different granite.
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