C-8
A 446 Series train on a C-8 service towards Cercedilla pulling into Pitis station in 2013.
Overview
Status	Operational
Owner	Adif
Locale	Community of Madrid, Spain
Termini	Cercedilla Guadalajara
Stations	32
Service
Type	Commuter rail
System	Cercanías Madrid
Services	Villalba-Segovia railway Madrid-Hendaye railway Madrid-Barcelona railway
Operator(s)	Renfe Operadora
Rolling stock	446 Series, 447 Series and 450 Series EMUs
History
Opened	1989; 36 years ago (1989)
Technical
Line length	135 km (84 mi)
Number of tracks	Double
Track gauge	1,668 mm (5 ft 5+21⁄32 in) Iberian gauge
Electrification	3kV AC overhead line

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.^[1][2] The C-8 shares tracks for the majority its length with Madrid commuter rail service line C-3 while it also shares significant parts with lines C-7, and C-10.

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 135 kilometres (84 mi),^{[citation needed]} 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:^[3]

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.

Station	Service	Cercanías Madrid transfers	Other transfers	Municipality	Fare zone
Cercedilla#*	●	C-9	Renfe Operadora-operated rail services	Cercedilla
Los Molinos	●	—	—	Los Molinos
Collado Mediano	●	—	—	Collado Mediano
Alpedrete	●	—	—	Alpedrete
Los Negrales	●	—	—	Alpedrete
Villalba*	●	C-3a, C-10	Renfe Operadora-operated rail services	Collado Villalba
Galapagar-La Navata	●	C-3a, C-10	—	Galapagar
Torrelodones	●	C-3a, C-10	—	Torrelodones
Las Matas	●	C-3a, C-10	—	Las Rozas de Madrid
Pinar	●	C-3a, C-10	—	Las Rozas de Madrid
Pitis*	●	C-3a, C-7	Madrid Metro line 7	Madrid
Mirasierra-Paco de Lucía*	●	C-3a, C-7	Madrid Metro line 9	Madrid
Ramón y Cajal	●	C-3a, C-7	—	Madrid
Chamartín*	●	C-1, C-2, C-3, C-3a, C-4, C-7, C-10	Renfe Operadora-operated high-speed and long-distance rail services Madrid Metro lines 1 and 10 National and international coach services	Madrid
Nuevos Ministerios*	●	C-1, C-2, C-3, C-3a, C-4, C-7, C-10	Madrid Metro lines 6, 8 and 10	Madrid
Recoletos	●	C-1, C-2, C-7, C-10	—	Madrid
Atocha*	●	C-1, C-2, C-3, C-3a, C-4, C-5, C-7, C-10	Renfe Operadora-operated high-speed and long-distance rail services Madrid Metro line 1 at Atocha Renfe station National and international coach services	Madrid
Asamblea de Madrid-Entrevías	●	C-2, C-7	—	Madrid
El Pozo	●	C-2, C-7	—	Madrid
Vallecas*	●	C-2, C-7	Madrid Metro line 1 at Sierra de Guadalupe station	Madrid
Santa Eugenia	●	C-2, C-7	—	Madrid
Vicálvaro*	●	C-2, C-7	Madrid Metro line 9 at Puerta de Arganda station	Madrid
Coslada*	●	C-2, C-7	Madrid Metro line 7 at Coslada Central station	Coslada
San Fernando de Henares	●	C-2, C-7	—	Coslada
Torrejón de Ardoz	●	C-2, C-7	—	Torrejón de Ardoz
Soto del Henares	●	C-2, C-7	—	Torrejón de Ardoz
La Garena	●	C-2, C-7	—	Alcalá de Henares
Alcalá de Henares*	●	C-2, C-7	Renfe Operadora-operated rail services	Alcalá de Henares
Alcalá de Henares Universidad	●	C-2	—	Alcalá de Henares
Meco	●	C-2	—	Meco
Azuqueca	●	C-2	—	Azuqueca de Henares
Guadalajara#*	●	C-2	Renfe Operadora-operated rail services	Guadalajara