I think it depends on where you are. I hunt the east side of the mountains and have a lot of hikers, fishermen walking along the river etc and the elk are not that spooked by seeing a person ( or winding) . They would return by the next day. If you are hunting private property & the elk have not seen a human all summer, then I think they would avoid that area for a while. The elk where I hunt don't seemed bothered by human scent left around at all but I've hunted down by Chehalis and watched an elk get to my foot steps about a hundred yards back ( wind in my face ) and he swapped ends & headed to the next county. I think it depends on the area, how much it is hunted, & temperament of the resident elk. Mike