The Lead Mines are located near Toryreck and Dryaw off of Thomas' Branch Line. Beyond the danger sign, workmen built tunnels that lead underground while digging for lead many years ago. The rails are strong enough to hold the weight of trucks, but not the weight of engines, and the ground is not firm enough to house cranes.
Thomas once went past a danger sign and fell down a mine on a section of unstable track. When the lead veins went dry in 1930, the mines closed. Since then, the mines have reopened and uranium is now collected from them.
- Season 1 - Down the Mine
- Season 2 - Percy Takes the Plunge (mentioned)
- Season 4 - Paint Pots and Queens (stock footage)
- It was referred in the Railway Series: Surprise Packet as the Dryaw Lead Mines.