Nordmarka is the mostly forested region which makes up the northern part of Oslo, Norway. The area called "Nordmarka" also extends into the municipalities of Hole, Ringerike, Lunner, Jevnaker and Nittedal. It is the largest part of the Marka borough.

Nordmarka is the mostly forested region which makes up the northern part of Oslo, Norway. The area called "Nordmarka" also extends into the municipalities of Hole, Ringerike, Lunner, Jevnaker and Nittedal. It is the largest part of the Marka borough.