Two Utah scout leaders who video recorded themselves gleefully toppling a boulder from a Jurassic-era rock formation in a state park were formally charged Friday, according to park department officials.

Highland residents Glenn Taylor, 45, and David Hall, 42, were accused of toppling a protected sandstone formation, also known as a hoodoo or goblin, at Goblin Valley State Park in October.

Taylor was charged with one count of felony criminal mischief and Hall with one count of felony aiding and assisting in criminal mischief, park officials said. Both men could face penalties up to five years in prison, $5,000 in fines and restitution for damages to resources of the State of Utah.