Kerlingarfjöll (1,477 m (4,846 ft)) is a mountain range in Iceland situated in the Highlands of Iceland near the Kjölur highland road. The volcanic origin of these mountains is evidenced by the numerous hot springs and rivulets in the area. And indeed, they are part of a large volcano system of 100 km2 (39 sq mi). The volcanoes of the range are tuyas.
The earth is shimmering red in this area because of the volcanic rhyolite stone the mountains are composed of. Minerals that have emerged from the hot springs also color the ground yellow, red and green.
The area was formerly known for its summer ski resort, but this was dismantled in 2000.
From 2000 Kerlingarfjöll have been operated as a highland resort, offering accommodation and food services to the guests in the area.