“That there are similar large volcanic aquifers north of the Columbia Gorge and near Mount Shasta likely make the Cascade Range the largest ... aquifer works and was formed, how it influences ...
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Take a tour of 125-million-year-old Cascade CavernsCascade Caverns is a 125-million-year ... temperature of 60-63 degrees Fahrenheit. The cave was formed by water eroding limestone. Tours range from basic history and wildlife viewing to more ...
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