The Columbine Memorial is a memorial in Columbine, Colorado, that honors the deceased and injured victims, survivors, rescuers, and all who were affected by the Columbine High School massacre on April 20, 1999. The memorial is located in Clement Park, which is behind Columbine High School, the site of the massacre. It is operated by a non-profit institution whose mission is to operate the memorial and its upkeeping.