Valleys of Oslo

geologic area located around the Norwegian capital Oslo

thumb|The view of Sørkedalen and Bogstadvannet from the Club House of Bogstad Golf Club thumb|Sørkedalen Church thumb|Sørkedalen during winter thumb|Pinsli farm in Sørkedalen Sørkedalen is a valley located in the northwestern part of Oslo municipality, northwest of Oslo's western suburbs, in Norway.

thumb|upright|220px|Maridalsvannet from the south thumb|Church ruins of the old St. Margaret's Church, Oslo|Saint Margaret's Church from the 13th century in Maridalen. thumb|Maridalen and Maridalsvannet Maridalen is a valley in the north of Oslo, Norway, just above the suburb of Kjelsås. Considering that Maridalen is within the Oslo city limits, this area has a very low population density. The valley consists of forests, lakes and agricultural land. Most of the valley is made up of the lake Maridalsvannet, which serves as the primary source of drinking water for 90% of Oslo's population. The o