Arizona PBS May 6, 2021 Chris Luna chants traditional hymns at a protest in Phoenix in February, when members of the group Apache Stronghold rallied on the eve of a hearing on their suit to block a copper mine that they say would destroy sacred lands at Oak Flat. The judge rejected their petition, but the project has been put on hold by the Biden administration. (Photo by Alberto Mariani/Cronkite News) Opponents of the proposed Resolution Copper mine at Oak Flat have been fighting the project for years, from lobbying in Washington to members of the San Carlos Apache Tribe setting up a camp near the entrance of Oak Flat campground in this photo from 2016. (File photo by Bri Cossavella/Cronkite News)