I have written about SASTRUGI before. This word from the Russian refers to the snow waves that many of us notice after a snowfall, but sastrugi can take many other forms than the gentle ripples in the snow caused by the wind.
We have had a least a few snow showers every day for the past week, and enough wind to blow the light dry snow across our field and into the Sunken Garden, created when the old barn was hit by lightning in 1990 and burned, leaving three stone foundation walls. The wind blows and creates a sculptural sastrugi bending over the top edge of the garden, but also creates a deep drift below that can last into May when I finally take a shovel to spread it out.
There is a large section of our drive (it is really town road that continues and ends in front of our house) where varied sastrugi form.
This sastrugi has a smooth swooping surface creating a shallow cave that is indicated by the shadow of the overhang,