Crabtree is a city in the Lanaudière region of Quebec, Canada, part of the Joliette Regional County Municipality. It is located along the Ouarea…Crabtree is a city in the Lanaudière region of Quebec, Canada, part of the Joliette Regional County Municipality. It is located along the Ouareau River, a right tributary of the L'Assomption River. The most interesting local attraction is the Trou de Fée, a cave on the west bank of the Ouareau River.