Llangollen Station

On the top of the hill to the right of the photo is Castell Dinas Brân, a medieval castle occupying a prominent hilltop site above the town of Llangollen in Denbighshire, Wales. The presently visible castle was probably built in the 1260s by Gruffydd Maelor II, a Prince of Powys. It's a lovely walk up there in good weather.
The river in the foreground is the River Dee which has its source in the mountains of Snowdonia in Meirionydd, Gwynedd, Wales. The river eventually turns north and meanders up to Chester. From there the waters of the Dee then converge with those of the River Mersey and Ribble.