A friend and I hunted unit 9 on the second weekend of the season. We both managed to tag nice bucks and saw plenty of antelope in the unit. You can hunt Unit 11 in Niobrara county too, which we did not know when we were there. If you have a map of the state, BLM, and walk in areas, don't ignore...
Just returned from my first antelope hunt in Wyoming. Both me and my hunting partner tagged out with nice bucks. We had an awesome time and met some great people along the way.