almost all 7 reasons are nature based.....
DUDE TORNADO *or hurricane* WITH ZOMBIES IN ITS WAY!!!!!!
i will now live in tornado ally in the summertime
I think acouple of things in nature will definitely help your chances of surviving a zpoc.
The first one is definitely cold weather. I saw someone else post this already, but its definitely going to stop their movement in winter. If their infected minds are too distracted with the thought of killing and eating, I doubt they'll seek shelter from the cold and will likely freeze to death. Being frozen solid will kill any virus Im sure.
Higher elevations give the advangtage of higher ground. This isn't just key for being able to defend yourself, but also allows you to see what types of threats are coming your way. If you can avoid contact, do so before engaging.
Rivers, and fast flowing creeks will make natural barriers for clumps zombies.
Wind, rain, snow, hell everything that threatens to kill your average man, will be a threat to kill zombies. Floods are good one too.