English introduction of scenic spots in Canada
Canada Pacific Railway played an important role in Banff's early years, building Banff Hot Springs Hotel and Lake Louis Castle, and attracting tourists through a large number of advertisements. At the beginning of the 20th century, Banff built roads, sometimes by war detainees, and sometimes through public works projects during the Great Depression. Since the1960s, the park accommodation facilities have been open all year round, and the annual number of tourists to Banff increased to more than 5 million in the1990s. Millions of people pass through parks on the Trans-Canada Highway. Because Banff is one of the most visited national parks in the world, the health of its ecosystem is threatened. In the mid-11990s, Canadian parks responded by launching a two-year study, which put forward management suggestions and new policies aimed at protecting ecological integrity.