On November 26, 2020, NAMRA speakers from hydro-impacted communities virtually appeared at the 51st National Day of Mourning in Plymouth, MA in a pre-recorded video to expose the cultural genocide, destruction, and ecocide that megadams cause.

Each year since 1970, the National Day of Mourning has been put on by the United American Indians of New England to serve as a reminder of the genocide of millions of Native people, the theft of Native lands, and the relentless assault on Native culture. Participants in National Day of Mourning honor Native ancestors and the struggles of Native peoples to survive today. It is a day of remembrance and spiritual connection as well as a protest of the racism and oppression which Native Americans continue to experience.

NAMRA has sent hydro-impacted community members to the National Day of Mourning for the past three years.