These units are either rolling or steep hills on Granodiorite in the Goongerah area extending from south of Goongerah north to Brown Mountain and the head of the Errinundra plateau. An alluvial Plains unit is also included in this group (floodplain and terraces), being surrounded by granitic Hill units. The soils are shallow to deep brown and red friable coarse gradational profiles in moister areas (higher elevations and topographic positions), while mid and lower slopes, particularly in drier areas have duplex profiles (generally yellow and brown) which are more erodible. Vegetation is predominantly Dry Sclerophyll Forest with some Wet Sclerophyll Forest and Riparian Forest in moister areas and major drainage lines. Geology: Dgl; Devonian Granodiorite/Granite. Rainfall: 700-1200 mm per annum. Slope: 0-56%, generally 32-56%. Dominant landform element: Slope. Minor landform element: Drainage depression, terraces (flats). |
Soils
: Dominant: Dy3.21, Dy3.42, Db: Yellow and brown duplex soils in drier areas on lower and mid slopes. Sandy loam upper A horizons weakly structured, overlie a massive loamy sand A2 horizon (occasionally conspicuously bleached), sometimes overlie a clayey loamy sand A3. These A horizons clearly overlie a coarse gritty medium clay, moderately well structured B horizon which is moderately mottled. The B horizon generally grades into weathered parent material at depths of 2.0 m or more.