Rollag

Rollag is a municipality in Buskerud county, Norway. It is part of the traditional region of Numedal. The administrative centre of the municipality is the village of Rollag, although the most populated area in the municipality is Veggli. Rollag is bordered in the north by Nore og Uvdal, in the east by Sigdal, in the south by Flesberg, and in the west by Tinn in Telemark.

Numedal () is a valley and a traditional district in Eastern Norway located within the county of Buskerud. It traditionally includes the municipalities Flesberg, Nore og Uvdal and Rollag. Administratively, it now also includes Kongsberg.

thumb|Veggli Church

church building in Rollag, Buskerud, Norway

Blefjell is a small mountain range located along the border between Buskerud and Telemark in Norway. It encompasses parts of the five municipalities of Rollag, Flesberg, Kongsberg, Notodden and Tinn. The highest point is Bletoppen at above sea level.

Railway in Buskerud county, Norway

Storegrønut is a mountain in Rollag and Nore og Uvdal municipalities, Buskerud, in southern Norway.