Location of Livingston Island in the South Shetland Islands.Yankov Gap from Melnik Peak, with Asparuh Peak in the background.Topographic map of Livingston Island and Smith Island.Tangra 2004/05 survey route including Yankov Gap.
L. Ivanov, N. Glavinchev, R. Tosheva and S. Naydenov. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands (from English Strait to Morton Strait, with illustrations and ice-cover distribution). Scale 1:100000 topographic map. Antarctic Place-names Commission of Bulgaria. Sofia, 2005