Back to your OP about advice on how to approach them...
Opening weekend tends to have a lot of pressure. My strategy in high pressure areas are to move quietly into an area, and find a funnel or pinch point to sit where they might move through if they are pushed. I also like to find the edges of timber and clearings to stalk at first light and the last few hours. Mid day I watch thick timber patches that are near watering areas.
Use the wind to your advantage. Sitting still in the rain can be miserable, so I sometimes have a small tarp to sit under and can make a little warming fire. I typically get inpatient and start walking around.
Later in the season, I don't know where the elk go, but it's probably the deepest darkest piece of timber or vine maple that is impossible to sneak in on without making a noise. Or private land. Again, sitting on the edges of those areas waiting for them to get up and move around, might be productive.