Editing Langjökull (section)

==Situation and form==
{{See also|Volcanism of Iceland}}

The glacier is roughly parallel to the direction of the country's active volcanic zone: north-east to south-west. It is about {{convert|50|km|abbr=on}} long and {{convert|15|to|20|km|abbr=on}} wide, and has a slightly narrower point roughly between the lake [[Hvítárvatn]] on the [[Kjölur]] mountain road to the east and the Þrístapajökull glacier to the west, near another smaller glacier, [[Eiríksjökull]], which is not quite connected to Langjökull. It is the nearest large glacier to [[Reykjavík]].

The area of the glacier includes some mountains, e.g. ''Jarlhettur'' ({{IPA|is|ˈja(r)tl̥ˌhɛhtʏr̥|}}; "The earl's hat") on the east side of Langjökull, a [[palagonite|palagonitic]] mountain range, which originated in a [[fissure vent]] under a glacier during the [[Last Glacial Period|Ice Age]].

The mountain ''Skríðufell'' {{IPA|is|ˈskriːðʏˌfɛtl̥|}} ({{convert|1235|m|abbr=on}}) is situated on the east, above lake [[Hvítárvatn]]. Other mountains on the eastern side of Langjökull are ''Fjallkirkja'' {{IPA|is|ˈfjatl̥ˌcʰɪr̥ca|}} ({{convert|1177|m|abbr=on}}), ''Þursaborg'' {{IPA|is|ˈθʏr̥saˌpɔrk|}} ({{convert|1290|m|abbr=on}}) and ''Péturshorn'' {{IPA|is|ˈpʰjɛːtʏr̥sˌhɔ(r)tn̥|}} ({{convert|1370|m|abbr=on}}).<ref>Kortabók Mál og Menningar, Reykjavík 2005, pp.48/49 and 55/56, icel.</ref>

A little to the east of ''Fjallkirkja'' is the hut of the Icelandic Glacier Research Society (also called Jöklarannsóknarfélag in the {{ill|Jöklarannsóknafélag Íslands|is}}), which includes scientists as well as interested amateurs.<ref>Íslandshandbókin. Fyrra bindi. Reykjavík 1989, pp. 111 f.</ref>