Adult marbled lungfish live in swamps, riverbeds, floodplains, and river deltas throughout its range. Bog ore could be mined from nearby ponds, swamps, riverbeds, and bogs. The whole of Jerusalem is surrounded by valleys and dry riverbeds ("wadis"). Beach nourishment often involves excavation of sediments from riverbeds or sand quarries. Floods occur when ponds, lakes, riverbeds, soil, and vegetation cannot absorb all the water. Children stand in water, digging sand and silt from riverbeds. Rivers are also commonly diverted as a way to access mineral rich riverbeds. These levees therefore confined waterflow to the riverbeds. The plateau is crisscrossed by Wadis (dry, seasonal riverbeds). The sandstone has shale lenses and fossil riverbeds. Wadi Diab is one of the major dry riverbeds which extend through Dukhan. Many species of Cobitidae burrow in the sand and inhabit riverbeds in broad, flat terrain. All follow dry riverbeds, which provide appropriate soils for viticulture. Prospectors retrieved the gold from streams and riverbeds using simple techniques, such as panning. The report said the mines caused damage through the excavation of forests and riverbeds.