Boy, this thread is giving me nightmares. I haven't heard of any problems like this is our area, but maybe it's coming.
We bought our property from a neighbor, who still keeps a close eye on it for us. It was a cattle ranch until about 5 years ago, when a developer swapped some bottom land for the ridge and divided it up into 20-100 acre parcels. We're at the end of a dead-end county road, which actually appears to be private, as the pavement ends about a 1/4 mile from the cul-de-sac where our property starts.
Anyway, we put up a chain across the trail into the property just to identify it as private, but as far as I can tell we haven't had any atv's in there. As a matter of fact, we have yet to find any trash on the property - not a bottle, a can, a scrap of paper - nothing. One of the reasons we bought it.
Here's hoping it stays that way. /w3tcompact/icons/hmm.gif