The Park County Sheriff's Department told 9NEWS the investigation started July 8 at 7:08 p.m., when witnesses reported the abandoned camouflaged vehicle in the Jefferson Lake area.
The next day, Sheriff Fred Wegener, along with Captains Dan Maldoon and Sven Bonnelyske joined by six search and rescue volunteers, went looking for the person. A search-and-rescue dog assisted as well.
Tuesday morning, investigators swabbed the head rest of the car to give the dog a good scent.
According to Undersheriff Monte Gore, the sheriff's department found a note in the car and towed the vehicle. The contents of the note have not been released.
Gore told 9NEWS as the search continued Tuesday morning, at 8:22 a.m. the sheriff's office got a call of an injured person at Jefferson Market. The person was picked up by some passerbys in the Jefferson Lake area, Gore said.
The call came in as medical. The man has injuries to his leg and head. Gore would not say what caused the injuries, as the case is in the early stages of investigation.
Gore told 9NEWS, based on note found it the car, "we suspect this individual may have driven to commit suicide."
Gore says investigators confirmed the abandoned car belonged to the man. Detailed information on the man is not available at this time.