SMRTR Science & EngineeringMar 31, 2026Scientific American

Utah’s Great Salt Lake may be hiding a massive reservoir of fresh water

SMRTR summary

Scientists discovered that Utah's Great Salt Lake may conceal a massive freshwater reservoir extending up to two miles beneath the lakebed, revealed through mysterious reed-covered mounds emerging as water levels drop to historic lows. Using helicopter-mounted electromagnetic equipment, researchers detected freshwater plumes below these formations, suggesting this hidden reservoir could potentially help address toxic dust problems from the drying lakebed that threatens Salt Lake City with arsenic exposure.

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