The Book of Settlement, also called Landnámabók, is a medieval document describing Norse life in Iceland during the 9th and 10th centuries. Within its pages is the story of when Laugarbrekku-Einar observed a troll sitting on top of this tallest basalt pillar at Lóndrangar. From this angle, it does look like a horse. The next person to reach the summit was climber Ásgrímur Böðvarsson in 1735.
