Hidden Freshwater Reservoir Revealed Beneath the Great Salt Lake
University of Utah researchers used airborne electromagnetic surveys over Farmington Bay to map beneath the Great Salt Lake and found freshwater permeating sediments up to about 4 kilometers deep, indicating a substantial subsurface reservoir. The study linked reed‑filled mounds to freshwater breakthroughs and mapped the potential volume, though the full extent remains unknown and requires more surveys. If confirmed, this groundwater could help wet dust hotspots and contribute to water resources without overly perturbing the lake system.