How do you...?

[MtnMike2]

I agree with others above that hunting is not just about killing something and I think it's great that you're out there in the outdoors with your sons.
Not that I'm any expert, but for what it's worth I thought I'd throw out a couple of things you might try:
1) ask the locals (as you've done). Guys at the local gun store; if you're hunting National Forest, for example, call the Forest Rangers; etc
2) "glassing". If you're in a hilly or mountainous area, sit on the side of the top of a ridge with binoculars or spotting scope and look for movement. Depending on the time of year, they're generally on the north side of slopes.
3) walking / look for sign: hike an area known to contain elk and look for fresh sign. Don't worry too much about jumping them - at least you'll know they're around. Look for droppings, tracks, but especially (here in Colorado) fresh bites out of aspen trees.

The hardest part of elk hunting can be locating them. Once you find them, mind the wind and minimize your movement.

Good luck and happy hunting! I hope that both your boys will remain hunters - I've heard our numbers are dwindling.

Mike