I`ve found dirt bike heaven. Not sure what to do about the jetting?
http://www.panoramas.dk/mars/greeley-haven.html (http://www.panoramas.dk/mars/greeley-haven.html)
Probably have to go real lean, and carry supplemental O2..... Looks like fun!
The temp can be tricky, too fucking hot then colder then Hell. But no trees to crash into. GPS to find a burger joint might be a bitch...