Early proposals The Llanberis Lake Railway runs along part of the trackbed of the defunct
Padarn Railway, a gauge line which connected the quarry with
Y Felinheli (Port Dinorwic) on the
Menai Strait. The Padarn Railway closed in October 1961 and was lifted between 16 May 1962 and February 1963. Following the closure of the Padarn Railway, various plans were made to open a gauge tourist railway on the trackbed. The first serious attempt was made by G. Ward, a local resident, who proposed a railway that would circle Llyn Padarn using the trackbeds of the
British Rail Llanberis branch and the Padarn Railway. This plan would have utilized track and locomotives from the
Dinorwic slate quarry, but the company did not pursue the proposal.
Quarry closure and formation of the railway company In July 1966, A. Lowry Porter of
Southend-on-Sea proposed a shorter railway running from the quarry company's workshops at
Gilfach Ddu near Llanberis to Penllyn, along the easternmost three miles of Padarn Railway trackbed. Negotiations were progressing with the company, when in July 1969 the quarry closed at short notice. == Operations ==