Officials say Frederick Myrl Rains was found outside a trailer in the Riley's Trailer Park early Tuesday morning. The coroner says there's no obvious signs of trauma or foul play.
The coroner did not issue a cause or manner of death, but hypothermia is being considered.
Toxicology results are pending and may take several weeks.
A man Rains was visiting, told KBOI-TV that they had a few beers together before he left to go visit his girlfriend.