Go high and glass! Look for places that are very difficult to stalk them. They don't get to be big by getting careless. Slot of times they will use smaller Buck's as bait. Six sets of eyes are better than two. Good luck.
375 H&H or improved, 250 Barnes or 260 nolser. Winchester model 70 with a Nikon scope. I've carried my for 30 years in grizzly country hunting and guiding in Wyoming.
It's big country check out maybe get some one to pack in your camp. I do it in Wyoming for some hunters. Make sure that you can start a fire in all conditions. Cold and wet is a bad situation in the making.