April 22, 5:30PM

Cincinnati Marriott Northeast

Go gold this Earth Day for the Little Miami’s 50th anniversary as a State Scenic River (Ohio’s first, thanks to LMC). Not only a celebration of five decades of success, but it’s also a chance to help bring 100 percent of the river under LMC’s protection. 5:30 – 9 p.m., Cincinnati Marriott Northeast. Individual tickets $49, table sponsorships from $500. LittleMiami.org