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deer are going to be more out in the open while in velvet and starting September 1st more in the buckbrush..... meaning where you find them in August won't be where they are in mid-September.
I'll add that trail cameras are a great tool. A camera can give you the confidence that deer are in the area, even if they are hard to find in person.
You will be in a Wilderness area so 48 hours is the rule for leaving things unattended.That means that trail cameras are not technically legal if left for days or weeks.
Dont expect to be by yourself, my advice would be to go in a couple days before the season, find the deer that you want and first light friday morning be in the position you need to be to put him down. Best chance at a mature buck is opening morning, after some shots are fired they seem to disappear in the thick and dark.
In general, the deer are going to start their days where the feed is, which is usually a South facing slope. They will then move to cover to bed. This isn't always timber on North facing slopes, but can be a brushy avalanche chute, strip of timber in the head of a basin, or even immediately downhill into timber below where their feeding. Bigger bucks that haven't been pressured yet, will often bed down very high on the ridge, below rock outcroppings, amongst piles of rocks/boulders/brush, overlooking the basin they feed in. Once they sense pressure, they will then move over into heavier cover on the north facing slopes. Don't be surprised to find deer well above timberline, in ground that looks more like goat country. If you think its "easy-ish" access to multiple basins, so will other people, and you will have competition. Consider that. There are very few secrets left in the high hunts thanks to the internet (forums are part of it, but mainly satellite imagery. It is very easy to scout alpine country with google earth, its highly visible). The best way to get away from people is to do just that, get away from them, go further/deeper/steeper than most people are willing to go.