Odstone Coombe Terracettes. 
The horizontal ridges in the valley are called terracettes, caused in the ice age by a process of solifluction. 
The beech trees are said to have been planted by Lord Wantage to commemorate the battle of Alma in the Crimean war when he was awarded a VC. (thanks to Hedley Thorne for this detail, which I’ve not found anywhere else).
Waylands Smithy
Ashdown Hill
We also did this walk in December 2016. Must have been a cloudy day.
A dry river valley shaped during the Ice Age, its interlocking, rounded spurs are marked with regular terraces. At first sight, these look man-made and could be shallow strip lynchets, but they are actually formed naturally by the process of soil creep down the chalk slopes.
Back in 2009 there was a Jellyfish crop circle in the field above the coombe.
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One reply on “Photos from walk on Thursday 18th November from Ashbury to Ashdown House”
I asked Google Bard to explain solifluction and terracettes and this is what it said:
Solifluction is the slow, downward movement of soil that occurs in areas with permafrost, or permanently frozen soil. It is caused by the freeze-thaw cycle, which loosens the soil and makes it more susceptible to movement. Solifluction can occur on slopes as gentle as 1 degree, and it can move soil at rates of up to a few centimeters per year.
Terracettes are small, stair-like landforms that are created by solifluction. They are typically found on slopes that are between 1 and 10 degrees, and they can be up to a few meters in height. Terracettes are often arranged in parallel rows, and they can be a few meters apart.
The formation of terracettes is thought to be caused by a combination of solifluction and vegetation growth. As solifluction moves soil downslope, it leaves behind a series of terraces. These terraces are then colonized by vegetation, which helps to stabilize the soil and prevent further erosion.
Terracettes are a common feature of periglacial landscapes, which are landscapes that are affected by permafrost. They can also be found in some temperate climates, such as the Scottish Highlands.