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Observatory Attractions In Silver Creek

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Silver mining in the United States began on a major scale with the discovery of the Comstock Lode in Nevada in 1858. The industry suffered greatly from the demonetization of silver in 1873 by the Coinage Act of 1873, known pejoratively as the Crime of 73, but silver mining continues today. United States mines produced 1,170 tons of silver in 2014, 17% of the silver it used. 63% of consumption was imported, from Mexico, Canada, Peru and Chile, and the remainder was derived from recycling. Three US mines had silver as their primary product, and 39 mines reported silver as a byproduct of gold and base metals production. Alaska was the country’s leading ...
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Observatory Attractions In Silver Creek

  • 1. Johnston Ridge Observatory Toutle
    David Alexander Johnston was an American United States Geological Survey volcanologist who was killed by the 1980 eruption of Mount St. Helens in Washington. A principal scientist on the USGS monitoring team, Johnston was killed in the eruption while manning an observation post six miles away on the morning of May 18, 1980. He was the first to report the eruption, transmitting Vancouver! Vancouver! This is it! before he was swept away by a lateral blast. Despite a thorough search, Johnston's body was never found, but state highway workers discovered remnants of his USGS trailer in 1993.Johnston's career took him across the United States, where he studied the Augustine Volcano in Alaska, the San Juan volcanic field in Colorado, and long-extinct volcanoes in Michigan. Johnston was a meticulo...
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