Inspired by the nightjar walk, we decided to explore the Tamar trails created by TV AONB. We started at Bedford saw mills and walked down to the Tamar and then up and down the trail that follows the river. The first photo shows a giant hogweed. It is described as an aggressive and nuisance invader and it is irritant to the skin, but nevertheless it is very impressive. The sheep are grazing in meadows of Blanchdown farm Unfortunately this means you cannot walk along the river bank at this point.
The water in the stream below has stained the rocks a vivid green I suspect this must be due to minerals washing out of mine workings higher up the valley. The foliage also looks an unnaturally bright green and that always makes me suspect that there are high concentrations of metals in the soil. (Is this the explanation, see link )?