Compagnie du Nord-Ouest
On an 1818 map, the explorer and mapmaker David Thompson of the North West Company (NWC) called the Boise, "Reids River," and the outpost, "Reids Fort". Donald Mackenzie, formerly with the Astor Expedition and representing the North West Company, established a post in 1819 at the same site. It was also abandoned because of Indian hostilities.