The Trona Towers are near the mining town of Trona, California, southwest
of Death Valley National Park. These unusual pinnacles are massive deposits
of tufa and travertine (forms of freshwater limestone) that formed where
calcium-carbonate rich waters discharged from submerged springs into a
large, salty lake that filled Searles Valley during the ice ages of the
Quaternary. Tufa towers like these near Trona are still forming in Mono
Lake today.
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