This rule of thumb is starting to cut both ways:
'the harder it is to get there, the more likely [people are there].
RyGuy's advice is still applicable in that the elk go where people are not. At this stage of the information age, many more hunters are getting in as deep as they can to hit the roadless parts, gravitating to the same burn, hunting the same deep dark nasty drainage, etc.
Look for places where the path skirts away from a stretch of cliff edge or even skips a basin so that it isn't seen from the road. If a cliff is next to a road or trail in two places and the middle section isn't glass-able from the road, then get off the trail and peek inside that little seam.
I'm e-scouting a heavy ATV-use unit right now. I looked more closely at a drainage that I know holds post-rut bulls that were harvested in the past. It is inside 0.5 miles to the closest road, but blocked by a finger ridge on the lower end and a sharp bend on the upper end.
It is too close to get the 'super-fitness hunters' interested but is just far enough to work as a barrier against lazy hunters. It has all the other elements of a sanctuary; steepness, water, and food.