Long before Euro-American fur trappers and settlers arrived, the Kootenai, Flathead, Pend d'Oreille and Kalispell Indigenous peoples inhabited this area.

In 1842, Father Pierre-Jean de Smet, a Jesuit missionary recorded the thermal springs that were used by the local Indigenous people who "after the fatigues of a long journey, they find that bathing in this water greatly refreshes them.

The gable ends are hidden by curvilinear parapets, below which are round openings inset with quatrefoil designs.

A sign reading "Medical Springs" was situated over the port-cochere that was supported by large square columns with decorative brackets.

By 1940, a new two story wing was built to house additional lodging accommodations on the top floor with apartments below for long-term patrons.