Around here if you want rocks you have to buy them; a boulder in the front yard would be a sure sign of affluence. The Brazos River runs along the west side of our property and directly behind the house is an old ford called "Rocky Falls". A geophysicist friend told me that was nonsense, there are no rocks in this area of Texas so I showed him the falls when the river was low. He agreed there were in fact rocks, "but a very poor quality of rock". (!)
