... Nant-y-Brwyn was the site highest above sea level and therefore the nearest to the source, which we studied. This site shows examples of interlocking spurs, a V-shaped valley and impermeable slates and quartz. The site is a tributary to the river Conwy. The rocks were impermeable and had a covering of peat, so there is no infiltration and the ground is flashy. The peat is saturated as high rainfall levels and cold conditions mean there is neither very little evaporation nor decaying here. The V-shaped valley is a result of vertical erosion. Here there is rough grazing for sheep, with natural vegetation of grass and moss. Trees would be too exposed to exist in this area. Site 2 - Meanders (792 446) The meander site is the second nearest to the source. It consists of consecutive meanders. The meander we studied and observed had a slip off slope that consisted mostly of ...

See this essay or coursework document in full right now