Echoes of ice

The `Parallel Roads' of Glen Roy slash through the landscape, like the barely camouflaged remnants of a massive engineering project. Their straight, precise form makes it easy to see why this glacial leftover baffled scientists for so long. Below you, the River Roy splashes down its rocky course, surrounded by a narrow strip of woodland, and you may hear buzzards mewing overhead, or catch the brown and white flash of a summer visiting sand martin.