These pastel-coloured pools in the Utah desert are actually used by miners to make fertiliser (though we could have sworn they were making crayons).
By pumping water deep into the ground, the miners are able to unlock buried deposits of potassium, which rise to the surface and form into crystals when the water evaporates in the hot sun.
The range of colours signify ponds in different states of evaporation. Who knew mining could be so pretty?
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