General Land Unit Description:
This site is the major soil type representing the Cambrian granite that is dissected by the Glenelg River and its tributaries. These soils are uniform in nature with relatively little clay throughout the profile. A common characteristic of these soils is a discontinuous cemented ironstone pan (petroferric horizon). Although the pan is discontinuous throughout this landscape, it does impact on the hydrological characteristics of the soil, decreasing the water holding capacity of the soil as well as acting as a barrier to plant roots. On the gentler slopes, there can be more soil development, with a common soil being Sodosols (GL160, GL122). The significant landscape feature of this land unit is the short steep slopes leading to the major drainage lines. The slope of the land, combined with the petroferric pan, are the major limitations for agriculture.