Grensdalur

For Grensdalursysstem belonging fumaroles in Hveragerði

Grensdalur, also Grænsdalur, is a small volcanic system in and around the place Hveragerði in southern Iceland. It is named after the homonymous valley. At its highest point, Mount Álútur, it reaches 471 m.

Naming

It is located in the east of the Reykjanes peninsula, and because two of its high-temperature areas are located at or in the place Hveragerði, it is sometimes referred to as Hveragerði system. The name Grænadalursystem found, as many related sources are in Grænadalur.

Adjacent volcanic systems

In the northwest, the Grensdalurvulkansystem adjacent to the systems of the Hengill and Hrómundartindur. When Grensdalur system is the oldest of these three volcanic systems. The last eruptions were in the Pleistocene.

High temperature areas

In place Hveragerði a geothermal area, which is a mixture of high and low temperature area, with fumaroles, hot springs, mud pots and a small geyser called Grýla which is rarely active.

Since the devastating earthquake in 2008 that ravaged the south of Iceland, a really extinct high-temperature region has revived in the north- east of the village. The sources are located on the slopes of Mount Reykjafjall and largely in the field of Agricultural University, are becoming increasingly larger.

Similarly, the activity in the valley and adjacent valleys Grensdalur is growing.