old as most of the surrounding volcanic features. The other two are Seyðishólar and Kerhóll. While most of the crater is steep-walled with little vegetation...

Kerið is the 23.5 km2 (9.1 sq mi) Seyðishólar-Kerhólahraun [ˈcʰɛrˌhouːlaˌr̥œyːn] field. Its vents are Seyðishólar that produced a volume of 0.26 km3...

Hrómundartindur Multiple rows of tindars and a recent lava flow Grímsnes WVZ - Seyðishólar Fissure swarms with effusive lava flows, and mildly explosive magmatic...

age of most of the surrounding volcanic features. The other two are Seyðishólar and Kerhóll. Although originally believed to have been formed by a volcanic...