Glenn Taylor faces a charge of felony criminal mischief, and David Hall of conspiracy criminal mischief -- both third-degree felonies, the Salt Lake City Tribune reported. Investigators say Taylor did the actual pushing, while Hall filmed him.
The incident in Goblin Valley State Park, known for its mushroom-shaped rock formations or hoodoos, became an international sensation after the two Scout leaders posted pictures online. Hall and Taylor said they toppled the boulder because it appeared ready to fall and they feared someone would be injured or killed but later conceded they should have reported the potential danger to rangers.
The incident cost them their volunteer positions with the Boy Scouts.
The video showed the two men cheering and joking as the rock fell over. But Hall later said he was seriously worried because an uncle had been killed by a falling rock.
A bill now in front of the Utah Legislature would make prosecution easier in cases of damage to rock formations.