Tribal group says crosses vandalized at Arizona prayer site

A group protesting a proposed copper mine outside of Phoenix says its prayer site was vandalized over the weekend when two crosses were removed, two others damaged and ceremonial eagle feathers were left on the ground.

Arizona's Tonto National Forest is investigating the vandalism at the Oak Flat Campground in the town of Superior, about an hour east of Phoenix, adjacent to property where Resolution Copper Mining plans to burrow a mine shaft 1.3 miles into the high desert landscape. It could be the deepest such mine in the U.S.

The group, known as Apache Stronghold, said the copper mine is an assault on their spiritual and cultural practice and believes its protest is...