Wyoming and Idaho authorities are jointly searching for a missing man who was last seen in the Casper, WY area.
The Caribou County Sheriff's Office in Soda Springs and the Natrona County Sheriff's Office in Wyoming are investigating the disappearance of Philip Lee Gibson, 23.
Gibson is described as a white male, 5'8", about 145 lbs. with blue eyes and blonde hair.
Officials believe Gibson is driving a black 2003 GMC crew cab pickup with various chrome accessories. The truck bears the Idaho registration 3C 2975T.
No other details were released by authorities.
The Caribou County Sheriff's Office requests that anyone with knowledge of Gibson's whereabouts call Sheriff Ric Anderson at (208) 547-2561, or the Natrona County Sheriff's Office at (307) 235-9282