The red color of her skin, narrow high forehead, prominent cheek bones and the hawk-bridged nose which flattened at the end above thick negro lips, all showed the mixture of two races.
On the train out to meet Spencer, I had marvelled at the Pitsea horizon, a nonsensical Thames estuary hillside towering over the mudflats, a Brecon Beacon of waste.
The sky was a clear, misty, opalescent blue. Directly ahead of him, Harry could see the towering beech tree below which his father had once tormented Snape.
So if you have areas of high elevation like towering sand dunes or hills, directly next to areas of low elevation like a depression, you can get spots like this where the water table nears or even exceeds the surface.