Reykholt is a village in the valley of the river Reykjadalsá, called Reykholtsdalur. It is part of Borgarfjörður, Western Region.
Reykholt was at one time one of the intellectual centers of the island and had for many years one of the most important schools of the country. The poet and politician Snorri Sturluson lived in Reykholt during the Middle Ages. Sturluson's records of the Old Norse language and mythology of medieval Iceland are invaluable to modern scholars.
Wikipedia https://en.wikipedia.org/wiki/Reykholt,_Western_Iceland
Coordinates 64°39'53.119" N -21°17'31.234" E