The Aldeyjarfoss () waterfall is situated in the Highlands of Iceland at the northern part of the Sprengisandur Highland Road. The river Skjálfandafljót drops here from a height of 20m. The columnar jointed basalt belongs to a 9000 years old lava field called Bárðardalshraun, hraun being the Icelandic word for lava.
See also
- Waterfalls of Iceland
- Volcanism of Iceland
- List of waterfalls
- Geography of Iceland