Hi EE, sorry about my post on the metalex/wsr answer. I wasn't exactly sure if you meant that or this unknown area. If it wasn't so early in the morning, I would've left the qestion to smarter minds than myself. Anyways, good to have you here on the board and hope we find out about what the gray areas are and whom they belong to.  Could it be just, bog/swamp that nobody would attempt to put a drill on ? Just a guess.

strato