 Thomson Lake Regional Park a man made lake along Highway 58 near Lafleche, Saskatchewan is 81 hectares (200 acres) in size and hosts swimming lessons, camping, picnicking, boating and golf.Thomson Lake was created in 1958 by Dr Thomson as a reservoir for Lafleche and Gravelbourg creating water resources in the dry desert like area historically known as the Palliser Triangle.Thomson Lake local regional park became the first regional park in the province of Saskatchewan.