Jasper National Park is a national park in Alberta, Canada. It is the largest national park within Alberta's Rocky Mountains spanning 11,000 km2 (4,200 sq mi). It was established as a national park in 1930 and declared a UNESCO World Heritage Site in 1984. Its location is north of Banff National Park and west of Edmonton. The park contains the glaciers of the Columbia Icefield, springs, lakes, waterfalls and mountains.