Tons of BLM land between Casper and Rawlins. The Red Desert area is considered the best. No problem at all getting permission on private land. Once they know your not from Wyoming they are generally great about come on in. But there is no need for private land. There are more goats than people in this area and lots of BLM ground. Go couple days ahead of hunt to scout and you'll be fine. If your looking for a ranch, we hunted the Pathfinder Ranch, half an hour south of Casper many times. Independance rock is on the ranch so it's not hard to find and it's a big place 175,000 acres or so. They always gave us access no problems.