A few have p.m.'d me. And I will answer you if I have not yet.
2 Options come to mind:
1. We can meet at an agreed location, to scout it for strategic positioning, locate and discuss rescources, plan entry and exit of area, etc.
2. We can post coordinates or maps (in private) so that if others can not make it to meet together, they can still find us after catastrophe strikes.
Having these locations established, we can also configure routes to and from established camps, so as to go undetected... Even if they are across states.