that no one, short of showing up with at least a back-hoe had the tools and energy required to make any kind of mess. We are not talking about a smoothly graded piece of property. The earth moving equipment tread marks were every where and in fact, it was easier to flatten the soil pushed up by the treads (where a machine turned) looking for tokens and chips, that much of the work actually smoothed the surface more than it created holes or piles of dirt.
Sorry Mark, while I understand your metal detecting concerns, this is simply not a factor in this instance. There was no clean-up to affect.
Jim