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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.
Big Hole National Forest was established as the Big Hole Forest Reserve by the U.S. Forest Service in Montana and Idaho on November 5, 1906 with 1,917,100 acres (7,758 km 2). It became a National Forest on March 4, 1907. On July 1, 1908 Big Hole was divided between Beaverhead, Deerlodge and Bitterroot National Forests and the name was ...
The 21 separate mining operations in existence by 1911 were consolidated into two in 1970: Kennecott and The Anaconda Minerals Company. In 1985 open-pit mining operations were halted by Kennecott's Utah Copper. In 1986, Kennecott discovered gold in nearby Barney's Canyon. [18] The Bingham Canyon Mine, an aerial photograph taken June 2018
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.
Mullis had received a $10,000 bonus for his invention, but suddenly he found that others in the company, particularly molecular biologists Henry Erlich and Randy Saiki, were being lauded in the ...
In 2012, scientists exploring blue holes in the Bahamas discovered bacteria deep in the caves where no other life existed, potentially filling the knowledge “gap” on what types of lifeforms ...
The bolide made impact at a speed of approximately 17.8 kilometers per second (11.1 miles per second), [4] punching a deep hole through the sediments and into the granite continental basement rock. The bolide itself was completely vaporized, with the basement rock being fractured to depths of 8 km (5 mi), and a peak ring being raised around it.
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