Basalt Lake is a small freshwater lake surrounded by three basalt outcrops with ‘organ-pipe’ formations in their rocks, situated in the central part of the ice-free Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. and draining through a stream southwards into Bransfield Strait. The feature is descriptively named from the surrounding rock formations. Location Basalt Lake is centred at which is northeast of Sealer Hill, east of Usnea Plug, east-southeast of Chester Cone, west-southwest of Tsamblak Hill and west-northwest from Negro Hill (British mapping in 1968, detailed Spanish mapping in 1992, and Bulgarian mapping in 2005 and 2009). Map Península Byers, Isla Livingston. Mapa topográfico a escala 1:25000. Madrid: Servicio Geográfico del Ejército, 1992. L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 2005. L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. References SCAR Composite Antarctic Gazetteer. Bodies of water of Livingston Island Lakes of the South Shetland Islands