Because of your screen name the first thought shouted in my brain was POTLUCK! Judging from the amazing vegan restaurants in Denver there must be a sizable population of herbivores. Check out meet-up or facebook for any local groups. I've met a lot of great people at vegan potlucks (my partner of 4 years being one of them). Like others have pointed out, there is a group for everything out there. It's just a matter of finding them.