The canyon Sigöldugil used to be filled by the river Tungnaá. Most of the water from the lake Krókslón is now forced into conducts to the power plant. But the canyon is still there for our pleasure and the overflow of Krókslón lake.
I have heard three names on thease waterfalls, Fögrufossar, Hrauneyjafossar and Lekafossar. Which one is right I'm not shure of. Perhaps they are all right