The Chemin de Fer de La Mure (La Mure railway) is a former coal-carrying electrified railway in (and owned by) the Department of Isère near the city of Grenoble, France, which lost its regular public passenger service from 2 February 1950 (although miners' trains continued until autumn 1962).

On 26 October 2010, shortly before the end of the season, a landslide destroyed the Viaduc de la Clapisse and parts of a tunnel entrance.

[2] Half the line eventually reopened in July 2021, from the top at La Mure as far as the viewpoint at Le Grand Balcon.

In 1950, this non-standard system was replaced with a conventional power supply with a single overhead line at 2400 volts direct current.

The SGLM found a new vocation in providing a tourist attraction and as a result, there remain all of the line's historical installations, the workshops, forge, joinery shop, etc.