Director Jeff Morin says they noticed 31-year-old William McDevitt was missing during a routine check at around three o’clock Tuesday afternoon.
They believe he left an outside recreation area, and met a car that appears to have been waiting for him on Route 15.
After a search by several law enforcement agencies, McDevitt was found and taken into custody in the Bangor area a couple hours later.
He was serving time for burglary and theft, and will now face an escape charge.
McDevitt will be transferred to a more secure facility.