4:20 on 4/20 at Cannabis Cup – Denver 2014 by green tripz | Apr 23, 2014 | Colorado, Culture, Denver VIDEO: Tens of Thousands Celebrate 4:20 on 4/20 at Denver’s 2014 Cannabis Cup. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ