Stone "rusting" (or night-time thievery)

there is an underground, black-market, illicit stone trade. according to the Stone Wall Initiative, one must take great care in getting fresh stone and understanding where these stones originate because, and i quote, "some quarries are really yards where strip-mined stone is gathered, sorted, and sold." but while i was chuckling to myself about the seedy side of gathering rocks, i ran across a website, The Stone Foundation, in Santa Fe that i thought was really cool. because there are old mine shafts yet unexplored on the property, i am interested in experimenting with different decorative yet useful stone walls around the different sections of the farm. this will be a very nice 'extension' of the mountain and i wonder how it might help keep the fox, rattlers, deer and other wildlife on the other side of it while helping to retain moisture inside - yes, i am dreaming and designing and really hoping someone volunteers to help on this one!