Pulley Block suspended on a steel cable at Dinorwic slate quarry with the working face behind.

- Image ID: W2YDJ7
Pulley Block suspended on a steel cable at Dinorwic slate quarry with the working face behind.
Phil Wolstenholme / Alamy Stock Photo
Image ID: W2YDJ7
Location: Dinorwic Slate Quarry, Gwynedd, North Wales