Gullfoss (Golden Falls) is a waterfall located in the canyon of Hvítá river in southwest Iceland.
and 2.5 km in length, extends perpendicular to the flow of the river. The average amount of water running over this waterfall is 140 m³/s
in the summertime and 80 m³/s in the wintertime. The highest flood measured was 2000 m³/s.