The place on the map called "biggest area" can be set up pretty long to the south. Zak Smith used to use it frequently for 300 and 400 yards at least (I don't remember how much further out he could get.) Only problem is you need to leave someone at the firing line to make sure some of the local yahoos don't shoot in that direction while you are walking to place your targets. It's like a cul de sac down in a gully and people shoot about 270 degrees out from it.

