Grefsenåsen is a hill in

Lillomarka Lillomarka is an area located to the northeast of Oslo, Norway. It is a part of Oslomarka and serves as a popular recreational area. Lillomarka is bordered by Maridalen and Nordmarka in the west, Nittedal and Gjelleråsen in the east, the sub ...

Oslo Oslo ( , , or ; sma, Oslove) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of ...

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

. The height is 377 meter. The view from the top is magnificent, and the hill has for a long time been a popular resort for

day-tripper A day trip is a visit to a tourist destination or visitor attraction from a person's home, hotel, or hostel in the morning, returning to the same lodging in the evening. The day trip is a form of recreational travel and leisure to a location th ...

s living in Oslo. A restaurant was built on the top in 1927, and this is still in use.

The name

The hill is named after the old farm of Grefsen, the last element is the finite form of ''ås'' m 'mountain ridge'. Landforms of Oslo Hills of Norway {{oslo-geo-stub