Scottish Natural Heritage's project to trap all the free beavers in the catchment of the Tay means that we must be discreet about geography - or were these photographs taken in Bavaria?
The back entrance to a burrow in the same burn. The soil was very sandy and some of the bank was collapsing into the stream. I noticed that the farmer had given up cultivating as close to the stream bank as he used to. I guess that the weight of modern farm machinery was enough to destabilise the steep bank.
The sound of rushing water alerted me to the existence of this dam.