hengifossa river valley in fljotsdalshreppur, east iceland with red and brown rock formations

basalt brown canyon clay cliff drop east egilsstadir europe fljotsdalshreppur fljotsdalur flow formation glacial gorge grass grassland green hengifoss hengifossa hiking iceland landscape icelandic lagarfljot layer moss mountain natural nature outdoor ravine red river riverbed road rock stone strata stream travel valley vegetation vertical view volcanic wall water wild