
Massive Hidden Freshwater Layer Detected Beneath Great Salt Lake
Scientists using an airborne electromagnetic survey have identified a continuous freshwater reservoir beneath Utah’s Great Salt Lake, spanning from about 100 meters (330 feet) down to 4 kilometers (2.5 miles) deep and potentially as large as the lake itself. The freshwater likely originates from mountain snowmelt and is trapped by impermeable rock layers, with some spots approaching the surface where reeds grow. While it could help damp dust and inform water management, researchers emphasize more widespread surveying is needed before considering extraction.
