The C-8 is a line and rail service of Cercanías Madrid commuter rail network, operated by Renfe Operadora. It runs from Cercedilla northwest of Madrid to Guadalajara railway station. The C-8 shares tracks for the majority its length with Madrid commuter rail service line while it also shares significant parts with lines , and .
Infrastructure
Like the rest of Cercanías Madrid lines, the C-8 runs on the Iberian gauge mainline railway system, which is owned by Adif, an agency of the Spanish government. All of the railway lines carrying Cercanías Madrid services are electrified at 3,000 volts (V) direct current (DC) using overhead lines. The C-8 operates on a total line length of , which is entirely double-track. The trains on the line call at up to 32 stations, using the following railway lines, in order from west to east:
List of stations
The following table lists the name of each station served by line C-8 in order from west to east; the station's service pattern offered by C-8 trains; the transfers to other Cercanías Madrid lines; remarkable transfers to other transport systems; the municipality in which each station is located; and the fare zone each station belongs to according to the Madrid Metro fare zone system.