Muddus is a national park in northern Sweden. It is situated in the province Lapland, with its largest part in the Gällivare Municipality. Furthermore, it belongs to the largely untouched UNESCO World Heritage classified Laponian area.
Natural scenes include the primeval forest with large trees, large boggy grounds, and deep ravines in between the rocks. Sweden's oldest known pine tree is also located here. It has been estimated to be at least 710 years, as it was found to have withstood a forest fire in 1413.