Perfect, sounds like I'll just leave at 20ish when I get there and just use the gas station when I go to Ouray. (Gotta hit Wiesbaden, if you haven't you really need to.)You do not need your own compressor to get by at HIH. Having your own is nice but not a necessity since so many people will have some kind of air up capability. Depending on your trails and how much pavement driving you will do, you'll likely just stay in the low-20's the whole weekend. One exception would be if you're driving all the way to Ouray, I'd probably go back up to something over 30. The road between Silverton and Ouray is not a place you'd want to have a blowout or a tire unseat itself.