The Three Crosses were erected on this site in 1686. A group of Explorers and missionary priests during their trip up the Ottawa River stopped at Explorer’s Point to repair their canoes. In commemoration and by order of Sieur de Troyes, they decided to mark the place where the two rivers meet and erected the three crosses.
The Three Crosses are located on the crest of the Laurentian Mountains, on the other side of the village of Mattawa on the Quebec shore. You can observe them from the Mattawa Museum.