Very heavily hunted units, leftover tags are available every year. I have only hunted 181 3rd season for elk a few years back and didn't see much(wish I had a moose tag I could have filled out a couple times). Everybody I talked to while I was there told me to go higher into 18, but I stuck it out down lower and kind of regret it. My suggestion would be the NE end of 18, very timbered but heard good things.