We were south of Ekalaka last two years, lots of deer where we were on a ranch. Some VG Whitetails, but the mulies were small, 140-150 ish top end. I have hunted the short pines just to the east in SD, several years back, good deer there both MD and WT on some private ground. Surprisingly good MD genetics there too...
My guess is the NF SE of Ekalaka gets pounded, but I do not know for sure. Something that worked for us in the NF around Ashland, that gets pounded, was to find a less roaded public spot above some private fields, sneak in there quietly in the dark and let them come to you. Suspect the same would work where you are looking, but less chance of green fields there I'd guess. Bet anything near a road is hammered badly.