Police responded deep into the woods but it took two hours before they could reach Vincent Bertrand after he crashed his ATV. Photo supplied by MRC des Collines de l'Outaouais

Police in west Quebec have identified the Ottawa man who died after flipping his all-terrain vehicle on a trail north of Gatineau.

Vincent Bertrand, 34, was riding his ATV with three others in l'Ange-Gardien, Que., when he flipped the machine.

The man was then pinned underneath more than 26 kilometres into the woods. Police add it took about two hours for first-aid responders to reach him.

Police say "it is impossible to accurately determine the cause" of the crash.

There was a combination of factors, they add, but speed and alcohol are not included in those.