18 Mar '12, 9pm

Doublet Pool photo: /cc @duncan

Doublet Pool photo: /cc @duncan

Duncan , Nicole, and I spent a delightful afternoon last fall wandering around the hot springs of the Upper Geyser Basin in Yellowstone. Most visitors to this area come for the big water works: Old Faithful. But just a short walk from the crowds you'll find equally-impressive pools of color and life. Doublet Pool is one of my favorites. At times the water is altogether still, like a tropical lagoon where you'd enjoy a splash. Then tiny bubbles start to appear and before long it's starting to look a lot more like a hot tub. What's really cool about Doublet though is the periodic thumping sound it makes as underground gas bubbles collapse. With each reverberating thump, the water level abruptly rises and falls. It's a great place to hang out with friends, enjoy the colors, and listen to some of Earth's music.

Full article: http://clarkware.com/blog/2012/3/18/doublet_pool

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