The deep emerald tone of Lake Louise in Banff National Park is attributed to the "rock flour" that is carried from the flow and trickle of the melted glaciers that stretch above the water.

公园里的路易斯湖因为“岩石粉”而呈现出深祖母绿色。“岩石粉”卷着水面上的冰块顺流而下。

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Canada followed in 1885, founding its first national park in the Rocky Mountains, now Banff National Park.

BBC: Birth and spread of the world��s national parks

About an hour-and-a-half from the Calgary airport, Banff National Park, arguably one of the most beautiful places in the world, merits at least a daytrip.

BBC: Following the royals through North America

Though the picturesque town of Banff and surrounding Banff National Park beckon with world-class skiing, mineral hot springs and countless other nature activities, it's tempting to stay put in the castle, so numerous and luxurious are its offerings.

FORBES: Banff Springs Eternal