Claude Gagné was 60 when he vanished in the forested Lac des Passes sector near La Tuque, Quebec, around September 1–2, 2000. He had travelled alone to a remote camp on Lac des Passes; his vehicle remained parked at the camp and his boat was found at the lake shore with its electric motor in the running position. There is no published account that anyone saw him enter the water, leave on foot, meet another person, or depart the area by other means.

He was believed to be wearing black water boots, a black and blue coat and light-gray or gray pants. The Sûreté du Québec is handling the investigation (police reference 158-000902-004) and requests tips by phone or through Crime Stoppers or the National Centre for Missing Persons and Unidentified Remains.

The few physical clues at the camp and shoreline leave the central question unanswered: what happened to Claude after he reached Lac des Passes? Does anyone have information about his visit to that camp or remember seeing him in the Lac des Passes area?