Hengifoss waterfall, Iceland.

Hengifoss is the third highest waterfall in Iceland, 128 m. It is located in Hengifossá in Fljótsdalshreppur, East Iceland. It is beautifully surrounded by basaltic strata with thin, red layers of clay between the basaltic layers. Fossilized trunks of coniferous trees, sensitive to cold, and lignite, which depict warmer climates during the latter part of Tertiary. Further down the Hengifossá river is Litlanesfoss, notable for the columnar jointed volcanic around it.