Topography
Although greatly altered by European occupation of the area, the topography was dominated by sand dune forms, exposed sandstone and erosion by water drainage.
Slopes greater than 30 degrees are part of the north-west or south-east aspect of the Aeolian sand dunes around the periphery of the open space of the park. Other steep slopes are related to the construction of engineering works such as embankments to the ponds and water storage reservoirs.
A narrow plateau is formed by the natural sandstone ridgeline to the north of Centennial Park and to the northeast of Queens Park. The south-facing sandstone slopes provide a broken terraced effect. Isolated sandstone knolls also occur at lower points within Centennial Park.
Three major gullies are located in the central area of the Parklands. These were natural topographic features falling towards the former swamplands.
The greatest range of elevation is from the 30-metre contour in the south-west corner to the 88-metre contour at the top of the Woollahra Reservoir in the north-east corner of Centennial Park.






