The United States, a country of 7.8 million people, has a total surface area of 8.2 billion square miles.
That’s roughly the size of Texas.
About 6.4 percent of the country’s surface area is salt lakes, which are formed from salt water that is deposited by the melting of ice sheets.
That melting creates lakes of salt, which is called salt water tafy, or salt.
The other 3.6 percent of that surface area has a much lower salt content, and that’s mostly from the fact that it’s relatively flat and the water is mostly salty, according to the Salt Lake Tribune.
The highest concentration of salt in the country is in the northern Great Lakes region, with a total of 1,700 parts per billion (ppb).
The rest of the surface area, which includes parts of the Dakotas, is comprised of mostly freshwater, the Salt River Journal reports.
The lake salt concentration has fluctuated in the past, as the land has been drained and farmland has been built up in some areas.
That has caused lakes to lose their water content.
The last time that Salt Lake County had a lake salt content higher than 1,000 ppb was in 2009.
But in recent years, the amount of lake salt in Salt Lake Valley has increased, according the Salt Water Taffy Association.
In the past 10 years, a total 3,000 ppm of lake salts have been found in the county.
In addition, the average lake salt level is 1,150 ppm, according SSTA.
In 2018, a record was set, when a salt lake was found to be more than 1 million ppb, and this year, it’s 3,700 ppb.
There is also a very high salt concentration in Lake Superior, with 2,500 ppm in 2018.
That was reported by the National Oceanic and Atmospheric Administration.
That lake salt was reported in a study published in the journal Science.
Lake Superior has a combined surface area that is just under 4.6 billion square feet (3.6 million square kilometers).
Its average depth is about 4.8 feet (1.2 meters).
That’s a lot of water, but the lake is actually pretty salty.
It’s about a third saltier than Lake Michigan.
But the difference between Lake Michigan and Lake Superior is that Lake Superior can be found at its widest point, and Lake Michigan can only be found in some places, according NASA.
There are a lot more lakes in Lake Michigan, but there are only about 100,000 lakes in the Great Lakes area.
The Great Lakes have the highest concentration (1,500 ppb) of lake water in the U.S. in comparison to other areas, according Science.