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This week we traveled from Chicago to Sacramento, California to visit family for the fourth of July. We drove through Salt Lake City, Utah and saw the salt flats. The kids were impressed by the site because it looks like snow, but with the temperature outside close to 90 degrees, we knew that it was impossible for snow to be on the ground.
We also drove by part of the great Salt Lake. I was curious about why the lake was so salty. When I looked it up, this is what I learned.
“The great Salt Lake is the largest natural lake west of the Mississippi River. At the current level the great Salt Lake is roughly 75 miles long and about 35 miles wide. located in several broad flat basins, a small rise in water lever expands the surface area of the lake considerably. The first scientific measurements were taken in 1849 and because then the lake level has varied by 20 feet, shifting the shoreline in some places as much as 15 miles.Great Salt Lake is salty because it does not have an outlet. Tributary rivers are continuously bringing in small amounts of salt dissolved in their fresh water flow. once in the great Salt Lake much of the water evaporates leaving the salt behind.Great Salt Lake is the remnant of Lake Bonneville; a great ice age lake that rose dramatically from a small saline lake 30,000 years ago. the most conspicuous reminders of Lake Bonneville are the ancient terraces etched into the landscape along the lakes former shorelines. The terraces were eroded by wave action and are relatively flat areas that follow a contour line. look south from Buffalo point for an exceptional view of Lake Bonneville terraces carved into the island as high as a thousand feet above the great Salt Lake’s surface. After the ice age the earth’s climate became drier and Lake Bonneville gradually receded to form great Salt Lake.Great Salt Lake is too saline to support fish and many other aquatic species. several types of algae live in the lake. Brine shrimp and brine flies can tolerate the high salt content and feed on the algae. Brine shrimp eggs are harvested commercially and are sold overseas as prawn food. The oft maligned brine flies do not bite or land on people and are the primary food source for numerous birds that migrate to the lake. For many of the summer brine flies form a ring around the entire shoreline and rarely venture much more than a few feet from the water’s edge. Biologists have estimated their population to be over one hundred billion.
The ever-fluctuating great Salt Lake has frustrated attempts to develop its shoreline. As a result much of the lake is ringed by comprehensive wetlands making great Salt Lake one of the most essential resources for migrating and nesting birds.”
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Link to this post:#WordlessWednesday on a Tuesday – Utah Salt Flats
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