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Washington State Workers to Install Equipment to Monitor Slow-Moving Landslide

Geologists say the 20-acre, 200-foot-deep mass could continue sliding for years, if not decades, and will likely fall bit by bit into the quarry pit owned by Columbia Asphalt. It will not become a fast-moving, catastrophically damaging landslide, they say.


(TNS) - If you see construction crews drilling into the western slope of Rattlesnake Ridge, where 8 million tons of rock and dirt are inching down the hillside, the Yakima Valley Office of Emergency Management says not to be alarmed.

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