The nice thing about a Cow tag, and having a guide, is a herd will be easy to find. Depending on the time of the season you hunt in, Bulls can be hard to find, but not cows. Many times me and my hunting friend would drive around scouting for 4-5 days before the opening of the hunt, to find a herd. Once we did, you can keep track of them discretely. Then we'd camp nearby the night before... no fires or loud truck doors slamming or anything. Quite often, before sunrise as we still-walked into the forest beside the field where they were the night before, they'd still be there.
Your guide will do all the scouting for you. That's the hardest part, finding the elk. And "only hunt were the elk are"....don't walk around hoping to find a herd, cows are pretty obvious and don't hide as much. But when they're wandering among thick junipers, you do have to be cautious you don't startle and outter perimeter elk. My friend was bow hunting for them once, and a bull smelled him or heard him. He was all in cammy. Suddenly right beside him the juniper parted and a big elk stuck it's head through, looking at him from 3 feet away! It startled him so much he didn't take a shot, and it pulled back and disappeared out the back way.