The Lighthouse is an island within the archipelago of the Grievous Islands in the Wounds. The site of one of the most active volcanoes across the Na-Gaesa Ocean, lava pours unceasingly from the Lighthouse, slowly growing the island. At certain intervals it erupts much more explosively, throwing hot gasses, lava, and tephra high into the atmosphere in events the dwarves of Harv Taruhm see as caused by the wrath of Urphel.
None live on the Lighthouse, at least not permanently.