my dogs love going places with me, whenever i leave, they get all excited because they think they're going. however, i do not know if it's really the fact of being in the car, or not being away from me. i've only taken then wheeling once, and that was in the snow so they were super pumped just for that reason. will the weather be pretty cool up there? if it's going to be hot i may think twice about it, or fix my a/c.
another issue is it may be a PITA to keep them on leash. they typically dont go far off leash, but they will chase a rabbit, deer, bobcat, bear, mountain lion. i'd have to have someone hold the leash if i decide to take them out in a hairy section where rolling is a possibility, which could be a pain.