C-9 (Cercanías Madrid)
commuter rail line of Cercanías Madrid located between the provinces of Segovia and Madrid
Line C-9, formerly known as the Guadarrama Electric Railway (Spanish: Ferrocarril Eléctrico del Guadarrama), is a narrow-gauge mountain railway incorporated into Madrid's Cercanías commuter rail network. The line is operated by Renfe Operadora and runs through the Guadarrama Mountains from Cercedilla, Madrid to Cotos Pass, Segovia. Although classified as a commuter rail line, Line C-9 primarily serves the ski resorts at Cotos and Navacerrada Passes, connecting with the rest of the commuter rail system with the Line C-8 at Cercedilla Station. Line C-9 is the only metre-gauge railway among the Cercanías Madrid lines.
History
The railway was first conceived in the 1910s as a means of connecting urban Madrid to the Guadarrama Mountains via the Navacerrada Pass. Construction began in 1919 and the section connecting Cercedilla on the Madrid-Segovia Line with Navacerrada opened on 12 July 1923 as the Guadarrama Electric Railway. The opening was attended by the King and Queen of Spain. The line was originally electrified at 1000 V dc. Service was interrupted during the Spanish Civil War but resumed in 1940. In 1954, the line was acquired by the state-controlled RENFE, the only metre gauge line to be operated by them.
“C-9 (Cercanías Madrid)” enters the record as commuter rail line of Cercanías Madrid located between the provinces of Segovia and Madrid. Crown Archives preserves that source wording while asking what Cercanías, Madrid and commuter can confirm, complicate or overturn.
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“C-9 (Cercanías Madrid)” is worth following because a concise public description often conceals a longer documentary argument. Here, Cercanías, Madrid and commuter provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Apr 9, 2025. The linked authority identifier is Q8880294. Authority coordinates are 40.796, -3.995. None of the 3 selected statements returned an explicit reference. The first chronological checks are 1919, 1923, 1000 and 1940.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “C-9 (Cercanías Madrid)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.