In California's Mojave Desert, there are sand dunes that sing. Not a whistle — a deep, eerie boom you can feel in your bones. These are the Kelso Dunes, over six hundred feet tall, and one of only seven places in North America where sand booms like this. And it is not the wind. The sound comes when sand avalanches down the steep face, grain sliding on grain.
Watch on YouTube: https://youtube.com/shorts/qmyR4JLBHsA
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