The municipality encompassed the areas located to the north, east, and southeast of the lake Aursunden.

[9] During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee.

At the time of the municipal dissolution, it was part of the Røros prestegjeld and the Gauldal prosti (deanery) in the Diocese of Nidaros.

The highest point in the municipality was the 1,561.38-metre (5,122.6 ft) tall mountain Storviglen which sits about 2 kilometres (1.2 mi) west of the border with Sweden.

The municipal council (Herredsstyre) of Brekken was made up of 13 representatives that were elected to four year terms.