Jóruklettur rock lies just upstream from the Ölfusá bridge, and the tree growing there catches the eye of many passersby. mbl.is/Sigurður BogiThis Saturday, members of the boat unit of the Árborg Rescue Association will ferry forestry workers out to Jóruklettur rock, a rocky island in the Ölfusá river near Selfoss. Their mission is to measure a striking spruce tree that has been growing there and has recently drawn much attention. This year, 2025, the honor goes to a solitary spruce on Jóruklettur rock, clearly visible, for example, when driving across the Ölfusá bridge. A longstanding mystery“Why a spruce is growing out on Jóruklettur rock has long been a mystery here in town,” says forestry worker Hreinn Óskarsson of Selfoss.