SAR Staff, Hasty Team, SVU, and WCSAR responded to the Sand Harbor area to search for a subject that had been missing for approximately six hours. The girlfriend and the missing subject became separated, and when she attempted to return to their vehicle, she became lost. A passing motorist located the female subject walking along SR28, and returned her to the vehicle. 911 was also called. When search teams arrived, they proceeded to check areas between the vehicle and Lake Tahoe in both directions. The missing subject was located about one hour after teams entered the area. He had fallen down a hillside and was wedged in a downed tree and rock debris. The subject also exhibited definite signs of hypothermia. EMS was requested and a low angle rope system was constructed to bring the subject up to the highway. Once this task was accomplished, he was transported by ambulance to a hospital.