Gullfoss (English: Golden Falls) is a waterfall located in the canyon of Hvita river in southwest Iceland. Gullfoss is one of the most beautiful and without a doubt most popular waterfall in Iceland. The wide Hvita rushes southward from the glacier lake Hvitavatn (English: White River Lake) at Langjokull glacier about 40km north of Gullfoss. About a kilometer above the falls it turns sharply to the left and flows down into a wide curved three-step "staircase" and then abruptly plunges in two stages 11 and 21 meters into a crevice 32 meters deep. The crevice, about 20 meters wide, and 2.5 km in length, is at right angles 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. During the first half of the 20th century and some years into the late 20th century, there was much speculation about using Gullfoss to generate electricity. Foreign investors who rented Gullfoss indirectly from the owners wanted to build a hydroelectric powerplant, which would have changed and destroyed Gullfoss forever. Sigridur Tomasdottir, the daughter of Tomas Tomasson who owned the waterfall in the first half of the 20th century must have felt the same. She lived at a farm nearby and loved Gullfoss as no one else. She was determined to preserve the waterfall´s condition and even threatened to throw herself into the waterfall. However, the investors attempts were unsuccessful, partly due to lack of money and today everyone can see the memorial site of Sigridur that depicts her profile at the top of the falls.