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Big Hole is a large maar (explosion crater) in the Fort Rock basin of Lake County, central Oregon, northeast of Crater Lake, near Oregon Route 31. It is approximately 6000 ft (1820 m) across and 300 feet (91 m) deep. [3] It is close to another smaller, but less-eroded maar crater, Hole-in-the-Ground.
The Big Hole has a surface of 17 hectares (42 acres) and is 463 metres (1,519 ft) wide. It was excavated to a depth of 240 metres (790 ft), but then partially infilled with debris reducing its depth to about 215 metres (705 ft). Since then it has accumulated about 40 metres (130 ft) of water, leaving 175 metres (574 ft) of the hole visible.
Unknown to the Nez Perce, Colonel John Gibbon had left Fort Shaw with 161 officers and men and one howitzer. Following the trail of the Nez Perce he collected 45 civilian volunteers in the Bitterroot Valley. [4] On August 8, a detachment led by Lieutenant James Bradley discovered the Nez Perce camp along the North Fork of the Big Hole River. [5]
Pat Munday, George Grant and the Conservation of the Big Hole River Watershed Montana: The Magazine of Western History (Summer 2002): 20–37. George F. Grant, ed., The Upper Clark Fork River, a special edition of the River Rat (July/August 1976). Bill Rooney review of Three Men, Three Rivers in American Forests (September/October 1994).
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An inscription reading "J White 1898" [3] was discovered deep within Carlsbad Caverns in the 1980s. [3] It provides witness to the presence of a 15- or 16-year-old Jim White. While riding his horse through the Chihuahuan Desert looking for stray cattle [ 2 ] with a fence mending crew [ 4 ] for the Lucas brothers, Jim saw a plume of bats rising ...
Two NASA telescopes discovered the oldest known black hole, which formed just 470 million years after the big bang created the universe.
CAPE CANAVERAL, Fla. (AP) — Scientists have discovered the oldest black hole yet, a cosmic beast formed a mere 470 million years after the Big Bang.