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So named for its bright yellow color, Canary Springs owes its brilliance to sulfur-dependent filamentous bacteria. The colors...
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Canary Springs

Yellowstone NP

So named for its bright yellow color, Canary Springs owes its brilliance to sulfur-dependent filamentous bacteria. The colors blend here in delicate tints on the creamy rock face. This spring is part of the Main Terrace at Mammoth and is also known for its ultramarine pool. Photo © copyright by Robert Faucher.

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