The Steamboat Pilot & Today reports Routt County Search and Rescue volunteers found Frank Yoast of Craig dead near Dunckley Pass west of Yampa on Friday afternoon. Coroner Robert Ryg could not determine exactly when Yoast died.

A plow truck driver called authorities Friday morning about a truck with a trailer attached to it that had been parked since Wednesday.

Yoast’s body was found farther up a trail from where his snowmobile was found, and Ryg says it appears he tried to backtrack to his truck on foot when he collapsed in the snow.