The reclaimed swamplands of the upper Toko valley are the dominant geographic feature, running from the north to the south-west of Douglas, at approximately 200m above sea level. Sandstone/greywacke ridges rise to between 300-370m altitude on each side of the valley floor.
The reclaimed swamplands in the upper Toko valley are a prominent geographic feature, extending from north to south-west of Douglas at approximately 200m above sea level. Sandstone/greywacke ridges rise between 300-370m altitude on either side of the valley floor.