Lealt Valley Diatomite Railway

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Lealt Valley Diatomite Railway
Locale Isle of Skye, Scotland
Dates of operation 1890–1915
Track gauge 2 ft (610 mm)
Length 2¾ miles
Headquarters Invertote
Lealt Valley Diatomite Railway
Loch Cuithir
River Lealt
Lealt (Lethallt)
Sound of Raasay

The Lealt Valley Diatomite Railway was a 2 ft (610 mm) narrow gauge tramway on the Isle of Skye, Scotland, which ran parallel with the River Lealt.

At the opening the line was worked by gravity - the line being on a falling gradient - and manpower. Later, the line acquired the use of a steam locomotive.

The western end of the line was at Loch Cuithir, where diatomite - known locally as Cailc (Scottish Gaelic for chalk) - was extracted from the lochbed and dried on wire nets. The seaward terminus had warehouses on the cliff-top at Invertote. At the base of the cliff was a factory where the diatomite was kiln dried, ground and calcined. The line was extended from the factory onto a pier into the Sound of Raasay. Diatomite was also extracted from Loch Valerain and transported by aerial ropeway to Staffin Bay. During its existence, the Skye Diatomite Company extracted 2000 tons of diatomite.

From Invertote, the diatomite was transferred by skiff, onto puffer boats, waiting in the bay, and shipped across to the mainland. The diatomite was converted into kieselguhr which was mixed with nitroglycerine by Nobel Industries, at Ardeer, to make dynamite.