It's the Las Vegas Fur Con! The event I always forget about and is apparently newer than I thought?
I remember talking to some internet furries ages ago wondering why we didn't have a Vegas con since we have literally every other kind of con here, and they told me that our con-at-the-time was a majorly shady affair set up by wealthy groomer types.
I accepted this answer, and I guess never noticed that we have a more popular/legit one now. And it's 21+?? Ok kinda cool.

@Kujaku "We have drinking, gambling, and state-acknowledged recreational weed, also you're probably going to see a titty either drawn or IRL, please take your kids somewhere else."

It makes sense!