Umpqua
I had the rifle tag down there a long time ago (1997). I spent about 20 days on the unit between July and October. I did not kill a buck, but I'm picky. Could have shot several 160-170 deer and saw a couple that were better but no chance to shoot them (one was open season, the other was scouting).
The deer herd has declined in numbers since then (I've spoke with the biologist even recently) but the buck:doe ratio is good. It is not very glassable country and you need to hunt near and in the cover.
It's been so long, I can't remember names in that country, but you don't have to get really specific to find the deer. Much of it is roaded and there are plenty of road hunters, but the muzz season should be pretty quite, unless the elk hunters are out then. The south half is more oakbrush and PJ, with the north half being a little more open, but not a lot. Most of the deer will be on top during the muzz season.
The best advice I could give you is to get down there before the season and find a few bucks to hunt. If that isn't possible, if you could find some of the hunters with archery tags, they will have the most current information and might turn you onto a good buck.
You'll have a nice hunt and could shoot a 160 to 180 deer with some luck.
Todd Black of BTO outfitters is the outfitter for the area and is top notch. I'm an outfitter, too, (Idaho) and hate it when people try to needle me for info with no intention of ever hiring me, and I'm sure he's the same way. However, if someone is upfront with me, I might give them a hand. If you have a few grand just lying around, unlike me, you might even consider hiring him.
Best of luck and hope to follow your hunt on Rokslide.