Vertical and horizontal scales given., Coloured map of the Colony of Natal showing geological formations and mission stations., Inset: "Section, along the main Road from the Drakenberg [sic] at Van Reenen Pass, to the Sea at Bluff Point, Port Natal.", Note on map: "Mission stations are shewn thus ... +. The figures in the section shew the heights above the Sea Level, in feet.", Colour-coded key to geological formations.