Think in terms of the typical contractor laying down an inch or two of topsoil over whatever fill was laid down to bring the yard up to grade. Unless you know that there are no stones or rocks just under the grass, they are there. It's kind of like that "unloaded" gun.Boma wrote:No I haven't been insulted by someone. =)
Also when I speak of grass, I'm talking about the ordinately grass that in common among most front yards of suburban homes. I believe there are no rocks or gravel under the grass. Maybe cables or pipes =)
Like my example above, a gun club near Altamont NY, where they built a new clubhouse about 200 feet in front of where the old one was, and buried the old parking lot with the excavated fill. Under the new grass just downrange was all kinds of rubble, including a couple of curbstones. Nobody considered that they might be dangerous, that anyone might ever shoot at the ground short of the 50 foot target line.