Have you checked with the game wardens on Pendleton itself about hunting there? They have very good deer hunting, and I have seen plenty of coyotes there. Just not sure if they allow you to shoot the yotes too.
Also, look out for the buffalo, and don't even think about shooting one. Fun to watch though.
If you cannot find a place on base, get a map of the Cleveland National Forest. Closest access for you would probably be out Route 76 to Palomar mountain. It's probably a 45-60 minute drive until you hit public land there.
Let me know if you have any other qeustions. I know a couple of the base wardens, so I could try to find out about yotes on base.
Winter is tough on whitetails, that is an accepted fact.
You can help the quality of your herd by providing winter plots - that are not necessarily designed as kill plots.
Having what I call green plots - that the deer can browse in when most of the other food is gone, can greatly benefit the deer herd when they need it most.
Come December - at least in our area of the south - most of the mast is gone, all of the crops were long harvested and this green browse can really make the difference for...