Numedal is a valley in Buskerud in Viken. The valley is the southwesternmost of the large valleys in eastern Norway and extends north-northwest from Kongsberg to Dagali. The largest settlements and settlements in the valley are Svene, Lampeland, Flesberg, Lyngdal, Rollag, Veggli, Nore, Rødberg, Uvdal and Dagali.

Numedalslågen, one of Norway's longest watercourses - the Numedal watercourse, flows through the entire valley. The gate has meant a lot to the valley and was previously used for timber floating. Numedal outside Kongsberg runs from Pikerfoss towards Hardangervidda and is scattered. The first 80 km the valley rises 103 meters.

Numedal as a district includes the three municipalities Flesberg, Rollag and Nore and Uvdal. Kongsberg is sometimes considered part of Numedal. Below Kongsberg, the valley is called Lågendalen. The district has a total of 33,298 inhabitants (1 January 2015) and 4,306 square kilometers including Kongsberg municipality. The regional center is the town of Kongsberg.

Numedal has four stave churches and a high number of preserved timber buildings from the Middle Ages. Dalføret markets itself as the "medieval valley" and arranges every year the Medieval Week, a festival with cultural events in several places.


Municipal division history
In 1838, Numedal was divided into the municipalities of Kongsberg, Sandsvær, Flesberg and Rollag. In 1858, the parishes Nore and Uvdal were separated from Rollag as Nore herred, which in 1900 was divided into Nore and Uvdal herreder. In 1907, Sandsvær was divided into Øvre and Ytre Sandsvær manors. Nore and Uvdal were merged again in 1962. Øvre and Ytre Sandsvær were both incorporated into Kongsberg in 1964.