Industrial landscape, Maen Offeren slate quarries, Blaenau Ffestiniog; foreground, on the left, rocks and a slate covered hill with tracks; middleground, on the right, a quarry with a rocky spur and tracks through slag heaps, in the centre, the town of Blaenau Ffestiniog with roads, a railway, a school, a chapel, sporadic trees, motor vehicles and rows of terraced houses; background, the mountains of Snowdonia with rocky outcrops and a distant lake / reservoir; sky, cloudy. Black and white image with predominantly grey tones