Penllyn railway station (Wales) (English Wikipedia)

Boyd 1986, pp. 219–222. Boyd, James I. C. (1986). Narrow Gauge Railways in North Caernarvonshire, Volume 3: The Dinorwic Quarry and Railways, Great Orme Tramway and Other Rail Systems. The British Narrow Gauge Railway. Usk: The Oakwood Press. ISBN 978-0-85361-328-2. OL 8284745M. B5C.

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Carrington & Rushworth 1973, p. 58. Carrington, D.C.; Rushworth, T.F. (1973). Slates to Velinheli : The Railways and Tramways of Dinorwic Slate Quarries Llanberis. Bury: Maid Marian Locomotive Fund. OCLC 931344595.
Yonge, Padgett & Szwenk 2013, Map 51F. Yonge, John; Padgett, David; Szwenk, John (2013). Gerald Jacobs (ed.). British Rail Track Diagrams - Book 4: London Midland Region (3rd ed.). Bradford on Avon: Trackmaps. ISBN 978-0-9549866-7-4. OCLC 880581044.