By the way Bill, there is a clay brick company, clay tile company, and used to be a clay pottery company all within about 7 miles of me. They all use that red clay you see in the picture.
If we build new terraces in a field and get a low spot, we have a pond till it evaporates.
Good for building ponds, sucks for farming. Percolation rates is something on the order of a few hundredths of an inch per hour for out subsoil.
