Category: Articles & Tips

An oddity you can appreciate without imagining ancient volcanic explosions are the singing sands of the Killpecker Dune Field. Just north of Rock Springs, The Killpecker Dunes sing; they are one of only seven areas of "booming" dunes in the world. The sand grains here are more rounded and polished than the sand grains of non-booming peers. But the shape alone wouldn't be enough if the sand didn't have a very low moisture content. Dry sub-surface stationary sand acts as a giant amplifier for even drier surface sand grains as they slip down the face of a Killpecker dune. When this happens, you'll hear a noise alternately described as singing, booming, roaring, and whistling.