Editing Extremes on Earth (section)

====Highest geographical features====
* The '''highest volcano''' is [[Ojos del Salado]] on the [[Argentina]]–[[Chile]] border. It has the highest summit, {{cvt|6893|m|0}}, of any [[volcano]] on Earth.
* The '''highest natural lake''' is an unnamed crater lake on [[Ojos del Salado]] at {{cvt|6390|m|0}},<ref>{{cite web |url=http://www.andes.org.uk/peak-info-6000/ojos-del-salado-info.asp |title=Andes Website – Information about Ojos del Salado volcano, a high mountain in South America and the world's highest volcano |access-date=18 January 2013}}</ref> on the Argentina side. Another candidate was [[Lhagba Pool]] on the northeast slopes of [[Mount Everest]], Tibet, at an elevation of {{cvt|6368|m|0}}, which has since dried up.<ref>{{cite web |url=http://www.highestlake.com/highest-lake-world.html#Lhagba |title=The Highest Lake in the World |access-date=7 September 2007 |archive-date=24 August 2007 |archive-url=https://web.archive.org/web/20070824054810/http://www.highestlake.com/highest-lake-world.html#Lhagba |url-status=dead }}</ref>
* The '''highest navigable lake''' is [[Lake Titicaca]], on the border of [[Bolivia]] and [[Peru]] in the [[Andes]], at {{cvt|3812|m|ft|0}}.
* The '''highest glacier''' is the [[Khumbu Glacier]] on the southwest slopes of Mount Everest in Nepal, beginning on the west side of [[Lhotse]] at an elevation of {{cvt|7600|to|8000|m|-2}}.<ref>{{cite web |url=http://www.ingentaconnect.com/content/igsoc/agl/2002/00000034/00000001/art00060?crawler=true |title=ASTER measurement of supraglacial lakes in the Mount Everest region of the Himalaya: ''The main Khumbu Glacier is about 17&nbsp;km long with elevations ranging from 4900m at the terminus to 7600m at the source''....The 7600m to 8000m elevations are also depicted on numerous detailed topographic maps |access-date=24 November 2008}}</ref>
* The '''highest river''' is disputed; one candidate from many possibilities is the [[Ating Ho]], which flows into the [[Aong Tso]] (Hagung Tso), a large lake in Tibet, and has an elevation of about {{cvt|6100|m|0}} at its source at {{Coord|32|49|30|N|81|03|45|E|type:waterbody|name=Ating Ho (source)}}. Another very large and high river is the [[Yarlung Tsangpo]] or upper [[Brahmaputra River]] in Tibet, whose main stem, the [[Maquan River]], has its source at about {{cvt|6020|m|0}} above sea level at {{Coord|30|48|59|N|82|42|45|E|type:waterbody_region:CN-54|name=Maquan River (source)}}.<ref>{{cite web|url=http://www.100gogo.com/bigben.htm |title=The Mystery of World's highest river and largest Canyon |access-date=7 September 2007 |url-status=dead |archive-url=https://web.archive.org/web/20070921032822/http://www.100gogo.com/bigben.htm |archive-date=21 September 2007 }}</ref> Above these elevations, there are no constantly flowing rivers since the temperature is almost always below freezing.
* The '''highest island''' is one of a number of islands in the [[Orba Co]] lake in Tibet, at an elevation of {{cvt|5209|m|0}}.<ref>{{cite web |url=http://www.worldislandinfo.com/SUPERLATIVESV2.html |title=Island Superlatives |access-date=7 September 2007}}</ref>