HISTORY 

Long before Lac Lacoste became a peaceful retreat, the Laurentian Mountains were traveled by Indigenous Algonquin peoples, who honored these vast lands and waterways. By the late 19th century, the region began to shift from untouched forest to a place of settlement, forestry, and early leisure escapes.

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In 1888, Alexandre Lacoste (1842–1923) acquired nearly 2,300 acres of land here, establishing his family’s private estate around Lac Lacoste. A distinguished Canadian lawyer, professor, and political figure, Lacoste was accompanied by his wife, Lady Marie-Louise Lacoste, herself deeply engaged in Québec’s civic and social affairs. Their legacy inspired generations of lawyers, scholars, and influential members of Québec society. Among their children, Justine Lacoste-Beaubien became one of the founders of Montreal's Sainte-Justine Hospital, a pillar of pediatric care in Canada.

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More than a century later, the spirit of the Lacoste family endures in the landscape — a timeless link between heritage, nature, and a life well-lived in the Laurentians.