Basaltic lava that has a smooth, hummocky, or ropy surface. A pahoeho flow typically advances as a series of small lobes and toes that continually break out from a cooled crust
U.S. Geological Survey, U.S. Department of the Interior, Volcano Hazards Program, Glossary, Washington, DC, USA 2011. http://volcanoes.usgs.gov/vsc/glossary/alluvium.ht ml, (ND/ Volc Emr - Amer) {795}