Sunset over Flooded Valley + books + beavers

Today I finished reading "Wilding", by Isabella Tree. In itself it is a really well-written, inspiring piece of conservation literature about wilding, or rewilding, which I would recommend anyone with an interest in the countryside or the natural environment to read. But I read it shortly after reading "The Overstory" by Richard Powers, and these two books make for a fascinating partnership. One is fiction, set in the USA, the other factual and autobiographical and set in Britain, and yet as I read "Wilding" I thought all the time about "The Overstory". Not such a surprise I suppose when one of the much-used quotes from "The Overstory" is: ‘reviving that dead metaphor at the heart of the word bewilderment.’
One of the sections of "Wilding" I enjoyed the most was about beavers, and the mostly beneficial effects they have on the landscape and the natural environment.  Here in Sweden the effects are within walking distance of us. The linked picture shows a very small stream the beavers have been working on. Pre-beaver the stream was perhaps 20cm deep and you could step across it, once you'd clambered 2 meters down the steep bank. Post beaver it is a pool 2 meters deep and 3 or 4 meters wide, stretching about 100 meters up the valley, behind their dam.
As well as the sunset this picture shows the valley and the beaver stream, lined with trees. The large pond in the foreground is nothing to do with the beavers. It's more a field flooded from the autumn rains and now frozen. I don't think the land is that well drained...   Just how beavers like it!