Drive up here to TN where there are oodles and get a truckload, Excomantia <img src="/images/graemlins/cool.gif" alt="" /> Seriously, even here, I don't count on them. The right type of rock (non-crumbling), size, shape, and weight is needed, and usually it takes a while to find the right one and I can already be finished with the task at hand by then by using my hatchet w/ its built-in hammer.
_________________________
Me, a vegetarian? My set of teeth came with canines.