Welcome to HT. Tons of hunting opportunities in CO. It is why so many Nonresidents come to CO every year. Do searches for particular questions you have both here and the Colorado Parks and Wildlife site.
In 2016 I hunted antelope southwest of Casper. Got my antelope the second day then hunted sage grouse, successfully there too, then did some trout fishing on the miracle mile. Had an absolute blast on all accounts. Wyoming is a great state to hunt. Have fun.