sentences:  Previously, the mountain was called London Mountain, named after a mining claim in the area.The locality was called Alta Lake before the creation of the Resort Municipality of Whistler in the 1970s, but the mountain's name had already been changed in 1965 as the associations with London's bad weather were deemed to be bad for advertising purposes.With the advent of the ski resort in the late 1960s the name was changed to "Whistler" to represent the whistling calls of the marmots, which are also known as "whistlers", that live in the alpine areas of the mountain.