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Glauber's Salt Bed West of Promontory Point, Great Salt Lake
註釋A bed of salt lies 15 to 25 feet below the bottom of Great Salt Lake west of Promontory Point. It is interbedded in the soft lake-bottom clays. The salt bed extends from a point about one mile west of the shore of Promontory Point to slightly beyond mid-lake, a distance of 9.5 miles. It has a maximum thickness in excess of 32 feet and has served as a foundation for the rock-fill causeway of the Southern Pacific Company across half of the lake.