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Francisco Kjolseth | Tribune file photo An April 10 landslide sent about 165 million tons of rock crashing down into the Bingha The slide hit Kennecott's open-pit copper mine about a week ago along the northeast wall. Photo courtesy of Rio Tinto-Kennecott Co Francisco Kjolseth | The Salt Lake Tribune The landslide area at Kennecott is seen in this photo from Thursday, April 18, 2013. Francisco Kjolseth | Tribune file photo An April 10 landslide sent about 165 million tons of rock crashing down into the Bingha Tribune file photo Since opening in 1992, the visitors center has hosted more than 3 million visitors. The fees collected, along w