Narrow Gauge

North Wales Narrow Gauge Railways: Ffestiniog, Welsh Highland, Talyllyn, Welshpool, Vale of Rheidol

Slate Quarry Railway systems: Dinorwic, Penrhyn, Nantlle, Dorothea, Maenoffren

British Narrow Gauge: Lynton & Barnstaple, Leek & Manifold, Campbeltown & Macrihanish