If you are gonna buy an OTC tag... first get a map and the DNR guide on OTC areas. Mark them on the map. A lot of the state is OTC, but not all of it. Now you know where you CAN hunt.
Then start looking at smaller areas. Look for more wilderness type areas, several miles deep with no roads. Also look to see if ATVs are allowed off road in the areas. They are not allowed everywhere. You have now already narrowed away half of the state or more.
Pick a few areas you like that have visible multiple watersheds or drainages. Like a main ridgeline with drainages off each side, one after another. If the elk get bounced out of one, they can go over the hill and feel somewhat safe. Where I hunt, they do not leave the country, just go over a drainage.
Do the Google earth thing and look around at your areas. Then call or email the local DNR large animal biologist. Tell them what you are looking for, give them the description of a couple of the areas of your choice, and ask them about the area and animal use, etc. They know and they will likely share if you come across well. I like to e-mail so they can answer when they have time, instead of catching them at a bad moment.
Order a good hunting version map. I use
www.myTopo.com . These are waterproof, customized (you choose the parameters and actual mapped area) and not bad priced. And you will get it quick.
Where I hunt, the elk are anywhere from next to the main drainage creek, to tree line. They are where they are. You need to walk to find them.
Suggest looking at ridges or near ridges for sign. They move around so there will be sign.
Good luck.
ChuckC