Salt is an essential mineral for life. These salt pans date to Pre-Inka times. A spring dissolves salt from underground deposits and carries it to the surface. Locals terraced the hillside to catch the salt water in over 3,000 shallow pools. When the water evaporated they collected the salt -- and still do today. Each family has about 10 p0ols.
And.......we tasted the water. Yummy!! Yes, it was salty!