Markarfljótsgljúfur

Markarfljótsgljúfur, or Markarfljót Canyon, is one of Iceland’s most dramatic and deepest gorges. It is located in South Iceland, where the glacial river Markarfljót has carved a canyon nearly 200 meters deep through volcanic bedrock.

The canyon is believed to have formed mainly during a massive glacial flood approximately 2,000 years ago. The river originates primarily from Mýrdalsjökull, with additional meltwater flowing from Eyjafjallajökull and surrounding highlands.

Upstream, the river flows across the Laufaleiti plains before plunging into the narrow gorge known as Fljótsgil. At its narrowest point lies Torfahlaup, a location surrounded by folklore claiming that people once leapt across the river there.

Several tributaries join the Markarfljót along its course, including Hvítmaga from Tindfjallajökull, Kaldaklofskvísl from Torfajökull, and the Emstruá rivers originating in Mýrdalsjökull.

As the river reaches Þórsmörk, it spreads across wide outwash plains known as the Markarfljót sands. Over thousands of years, sediment from the river has shaped much of the lowland beneath the western slopes of the Eyjafjöll mountains, including the area known as Landeyjar.

Historically, Markarfljót posed a serious threat to nearby farmland due to frequent flooding and shifting channels. Flood defenses were first constructed around 1910, with major protective embankments built between 1930 and 1950.

Today, Markarfljótsgljúfur is a spectacular viewpoint that vividly demonstrates the immense geological forces that have shaped Iceland’s landscape through volcanic activity and glacial flooding.