Months ago when flying into San Francisco, our plane was diverted into a holding pattern a little ways outside the airport due to traffic, and as I watched from the window I noticed that we were circling some sort of massive pools of colored water. They were so vibrant in color that I was amazed, and I took a bunch of photos (and posted them).

What I didn’t know at the time was, that was the Cargill solar evaporation salt production facility. I actually just learned it by watching the TV show “Modern Marvels” that was specifically on salt production. As soon as they began describing the location of the facility I instantly knew what I had seen months ago!

Anyway, the rich colors that you can see in the ariel photography are supposedly due to the microorganisms that live in this heavy concentration of salt water called brine. The brine contains a concentration of about 25% salt, which is about the maximum amount of salt that can actually be disolved in water.
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