It depends on what part of the state youre thinking of. I live in Gillette and had 5 in my yard this morning, and I live IN TOWN! The damn things are everywhere! There is alot of Walk In Areas along with a ton of BLM land you could easily get an antelope. You can go online to Wyomings Game and Fish, they have a link to all their enrolled WIAs.
Butt, Breast, Beak, BANG!