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Amazing Photos

Yellowstone’s Rainbow Hot Spring

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Jöriseen lakes in the Silvretta Alps, Switzerland
On sunny days, the lakes glow an ethereal blue, contrasting with the dark, jagged Silvretta Alps that encircle them. The sunlight is reflected in the water by 'rock flour'—silt-sized rock particles generated from the grinding of bedrock by glaciers.

The Silvretta Alps sit across the Swiss-Austrian border and are themselves surrounded by glaciers in an area known as the 'Blue Silvretta.'
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