With conflicting claims over the discovery of hot springs in Banff, Prime Minister John A. Macdonald decided to set aside a small reserve of around the hot springs at Cave and Basin as a public park known as the "Banff Hot Springs Reserve" in 1885. Under the "Rocky Mountains Park Act", enacted on June 23, 1887, the park was expanded to and named "Rocky Mountains Park". This was Canada's first national park, and the third established in North America, after Yellowstone and Mackinac National Parks. The Canadian Pacific Railway built the Banff Springs Hotel and Lake Louise Chalet to attract tourists and increase the number of rail passengers.