The park consists of a total protected area of 1,102 square kilometres (425 sq mi).

There are steep-sided fjords with deciduous woodlands, coniferous forests, mountainous terrains, and alpine peaks.

[3] Cultural heritage relics have been found that date from the Mesolithic period (8000–9000 years ago) up to the present day.

Farms that were abandoned due to the Black Death were re-cleared from 1500 to 1800 by ethnic Norwegians who expanded into the Sámi areas.

The Second World War also left its mark in the Lomsdal-Visten area, and an annual march goes from inner Visten to Eiterådalen to commemorate wartime events.