not in any way objective, but all y'all'll prolly have a hard time finding suitable trees below 4,500' elevation. unless in riparian areas, and a few hidden pockets here and there, the deserts just don't have the possibility to hang along the entire 800 mile stretch. choose some hikes that are (for heat concerns) over 7000' and you should find plenty of ponderosa, with pockets of bigtooth, oak, and boxelder. aspens up higher @ ~9000'. I wouldn't hang from sycamore tho.. dang widow makers I tells ya.
"all y'all'll". just go with it..