Friesland Ridge
Friesland Ridge is a ridge on Livingston Island in the South Shetlands, part of the Tangra Mountains. The summit, Mount Friesland, which rises to, is the northwesternmost of the ridge's six main peaks. Its elevation was estimated at by a 1995/96 Bulgarian survey; the present figure was produced by a 2003 Australian GPS survey, and closely matched by the Bulgarian survey Tangra 2004/05.
The local ice relief is subject to changes, causing variations in the mountain peaks’ elevation. According to a Bulgarian GPS survey by D. Boyanov and N. Petkov the elevation of Mt. Friesland was in December 2016, making the peak lower than the adjacent St. Boris Peak at that time.
First ascent of the summit Mount Friesland by the Catalans Francesc Sàbat and Jorge Enrique from Juan [Carlos I Base|Juan Carlos I Base] on 30 December 1991.
The feature takes its name from Mount Friesland.
Location
The midpoint of the ridge is located at .Maps
- L.L. Ivanov. Livingston Island: Central-Eastern Region. Scale 1:25000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 1996.
- S. Soccol, D. Gildea and J. Bath. Scale 1:100000 satellite map. The Omega Foundation, USA, 2004.
- 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. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009.
- L.L. Ivanov. Antarctica: Livingston Island and Smith Island. Scale 1:100000 topographic map. Manfred Wörner Foundation, 2017.
- A. Kamburov and L. Ivanov. Bowles Ridge and Central Tangra Mountains: Livingston Island, Antarctica. Scale 1:25000 map. Sofia: Manfred Wörner Foundation, 2023.