| Madrid–Aranda–Burgos railway | |
| Start: | Madrid Chamartín |
| End: | Burgos Railway Variant |
| Owner: | Adif |
| Operator: | Cercanías Madrid |
| Linelength Km: | 280 |
| Map State: | collapsed |
The Madrid−Burgos railway also known as Madrid−Aranda−Burgos railway is a railway connecting Madrid and Burgos via the and Aranda de Duero in Iberian gauge.
It consists of a 25 km-long double-track electrified stretch from Madrid to Colmenar Viejo (used by Cercanías services) and a single-track non-electrified segment beyond Colmenar Viejo.[1]
Upon a March 2011 landslide in the Somosierra Tunnel, the 159 km-long stretch from Colmenar Viejo to Aranda de Duero has been left abandoned.[2] The 96 km-long stretch from Aranda to the new Burgos Railway Variant has been used for freight transport.[3]