Which annual gathering that takes place at Black Rock City did Further Future want to change the  "vanish and leave no trace" principles instilled in those who participate in it
Burning Man Burning Man is an annual gathering that takes place at Black Rock City—a temporary city erected in the Black Rock Desert in Nevada. The event is described as an experiment in community and art, influenced by 10 main principles: "radical" inclusion, self-reliance, and self-expression, as well as community cooperation, civic responsibility, gifting, decommodification, participation, immediacy, and leaving no trace.
Unthanksgiving Day Unthanksgiving Day (or Un-Thanksgiving Day), also known as The Indigenous Peoples Sunrise Ceremony, is an event held on Alcatraz Island in San Francisco Bay to honor the indigenous peoples of the Americas and promote their rights. It coincides with a similar protest, the National Day of Mourning, held in Massachusetts. Held annually since 1975, the Alcatraz ceremony commemorates the protest event of 1969, where the Alcatraz-Red Power Movement (ARPM) occupied the island. Currently the annual ceremony is organized by the International Indian Treaty Council and American Indian Contemporary Arts.