Völundur Jónsson. Dettifoss er aflmesti foss Islands. Hann er 45 m har og rumlega 100 m brei?ur foss i Jokulsa a Fjollum. Hann er hluti af ?jo?gar?inum i Jokulsargljufrum og er skilgreindur sem Natturuvaetti skv. Umhverfisstofnun. Nalaegt honum eru tveir miklir fossar, Hafragilsfoss ne?an hans, en Selfoss ofar i anni. Dettifoss er hluti af syslumorkum Nor?ur- og Su?ur-?ingeyjarsyslna. http://is.wikipedia.org/wiki/Dettifoss
Dettifoss is a waterfall in Vatnajokull National Park in Northeast Iceland, and is reputed to be the most powerful waterfall in Europe.[2] It is situated on the Jokulsa a Fjollum river, which flows from the Vatnajokull glacier and collects water from a large area in Northeast Iceland. The falls are 100 m wide and have a drop of 45 m down to the Jokulsargljufur canyon. It is the largest waterfall in Europe in terms of volume discharge, having an average water flow of 193 m3/s. The waterfall can only be reached by a rough road. On the west bank there are no facilities and the view on the waterfall is somewhat hindered by the waterfall’s spray. On the east bank there is an information panel maintained by the staff of Vatnajokull National Park (Vatnajokuls?jo?gar?ur) and a maintained track to the best viewpoints. The closest populated areas include Vopnafjor?ur, Myvatn and Husavik.