In N. of Utah, U.S., stretches upwards of 80 m. along the western base of the Wahsatch Mountains, about 4200 ft. above the sea-level; it is from 20 to 32 m. broad, and very shallow; Antelope Island, 18 m. long, is the largest island; the coast is rugged and desolate; its clear waters hold no fish, and the surplus inflow is carried off by evaporation only.