Well I got back to steady internet access and my preliminary report is: Watch out for altitude sickness when you jump a few thousand feet of elevation. In my case it was between 5-7,000 ft when I'm more used to sea level. Results are the obvious shortness of breath with little exertion. If you become a self-destructive idiot and try, I don't know, chopping up Juniper trees... result increases to migraine strength headaches, nausea, and the desire to become undead as soon as possible! I seriously underestimated the altitude change, don't make the same mistake! I couldn't check out Montezuma's Castle because I was too stinking sick to do anything. Major Failure on my part. If any of you have "Go to the mountains" as part of your escape plan, make sure you spend time at your intended altitude before hand or you may end up as zombie chaff! Altitude sickness doesn't affect everyone but it is not pleasant to find out you are when you have hard work to do. Plan short trips 'up there' to begin with and gradually work your way up to exertion at altitude or you WILL regret it.
On the positive side though, the grand canyon is the perfect place to dispose of the undead. I think we can stack up the entire population of North America in there and not come close to filling it in. The view is so spectacular that it doesn't even look real. I felt like I was looking at a giant panoramic poster. Nothing could exist on that scale, for so long, and be really real. A travel tip for going out there: Skip the Flintstone park but stop at the Airplane Museum. They have some fantastic military planes there and always have the time to talk to you about them.