Aquifers in the Cascade Range mountains provide most of Oregon’s drinking water. No one imagined the abundance God provided in His creation of the earth. One of the aquifers was known but its volume had never been measured until earth scientists at the University of Oregon mapped it.

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The best estimate is 19.4 cubic miles of water (21.4 trillion gallons), three times the water volume of Lake Mead, the largest reservoir in the United States. Co-author of the study, Leif Karlstom, described it as “a continental-size lake stored in the rocks at the top of the mountains, like a big water tower.”
Source: “Atop the Oregon Cascades, a UO team finds a huge buried aquifer,” by Laurel Hamers, Oregon News from the University of Oregon. URL: https://news.uoregon.edu/atop-oregon-cascades-uo-team-finds-huge-buried-aquifer, retrieved March 4, 2025.
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