Great Salt Lake, UTAH - Harvesting Salt

Description: Great Salt Lake, UTAH - Harvesting Salt - 1937: The Great Salt Lake, located in the northern part of the U.S. state of Utah, is the largest salt water lake in the Western Hemisphere, and the fourth-largest terminal lake in the world. In an average year the lake covers an area of around 1,700 square miles (4,400 km2), but the lake's size fluctuates substantially due to its shallowness. For instance, in 1963 it reached its lowest recorded level at 950 square miles (2,460 km²), but in 1988 the surface area was at the historic high of 3,300 square miles (8,500 km2). In terms of surface area, it is the largest lake in the United States that is not part of the Great Lakes region. The lake is the largest remnant of Lake Bonneville, a prehistoric pluvial lake that once covered much of western Utah. The three major tributaries to the lake, the Jordan, Weber, and Bear rivers together deposit around 1.1 million tons of minerals in the lake each year. As it is endorheic (has no outlet besides evaporation), it has very high salinity, far saltier than sea water, and its mineral content is constantly increasing. Its shallow, warm waters cause frequent, sometimes heavy lake-effect snows from late fall through spring. Although it has been called "America's Dead Sea", the lake provides habitat for millions of native birds, brine shrimp, shorebirds, and waterfowl, including the largest staging population of Wilson's Phalarope in the world. Most of the salts dissolved in the lake and deposited in the desert flats around it reflect the concentration of solutes by evaporation; Lake Bonneville itself was fresh enough to support populations of fish. More salt is added yearly via rivers and streams, though the amount is much less than the relict salt from Bonneville. The salinity of the lake's main basin, Gilbert Bay, is highly variable and depends on the lake's level; it ranges from 5 to 27% (50 to 270 parts per thousand). For comparison, the average salinity of the world ocean is 3.5% (35 parts per thousand) and 33.7% in the Dead Sea. The ionic composition is similar to seawater, much more so than the Dead Sea's water; compared to the ocean, Great Salt Lake's waters are slightly enriched in potassium and depleted in calcium. Solar evaporation ponds at the edges of the lake produce salts and brine (water with high salt quantity). Minerals extracted from the lake include: sodium chloride (common salt), used in water softeners, salt lick blocks for livestock, and to melt ice on local roadways; potassium sulfate, used as a commercial fertilizer; and magnesium-chloride brine, used in the production of magnesium metal, chlorine gas, and as a dust suppressant. Food-grade salt is not produced from the lake, as it would require further costly processing to ensure its purity. Mineral-extraction companies operating on the lake pay royalties on their products to the State of Utah, which owns the lake. The Linen Era card, published in 1937, is in good condition, but shows some edge wear. Genuine Curteich-Chicago "C.T. Art Colortone: No. 7A-H3735. Desert Book company. Salt Lake City, Utah. No. 942.

Price: 8.5 USD

Location: Brooklyn, New York

End Time: 2025-01-02T03:11:56.000Z

Shipping Cost: 0 USD