The name of Þorbjörn or Þorbjarnarfell, the mountain of Þorbjörn which is till today a popular man's name in Iceland, is connected with the son of a farmer in the region. When a group of bandits were tyrannizing the farmers in the area and disappeared into hiding every time after their raids, the young man had the idea of playing to be part of the group. In this way, he found out that their hiding place was in a cave within the mountain, and the bandits were taken and hanged. Since then, the small canyon within the mountain is called Thieves' Canyon (Þjófagjá).