Authorities at the Grand Canyon are looking for vandals who defaced a rock near an overlook on the South Rim.
Park spokeswoman Kirby-Lynn Shedlowski says a visitor photographed the rock with “Evans 16” spray-painted in black, and a man and woman walking away from it on May 22.
The man was wearing a reddish-pink T-shirt and brown pants with a gray sweater tied around his waist. The woman had on jeans and a long-sleeve camouflage-print shirt.
Defacing a natural feature is a federal offense that carries jail time and fines.