There are 4 forms of relief from high to low
■ high mountain range, with most peaks higher than 1,500 metres (Figure 4.21)
■ low mountain range, with most peaks between 500 and 1,500 metres (Figure 4.22)
■ hills, with most peaks between 200 and 500 metres
■ lowland, areas with an elevation of less than 200 metres.