Haut-Martelange (Luxembourgish: Uewermaartel) is a village in northwestern Luxembourg.

[2] During the 19th century, mines in Haut-Martelange were one of the main exporters of slate in Europe.

The importance of the site grew significantly after investments were made by the Rother family from Frankfurt.

The connection of Haut-Martelange to the Noerdange-Martelange railway line (Jhangeli) in 1890 gave the possibility for high-volume exports to the whole of Europe.

During this time, the slate mines of Haut-Martelange accounted for a significant amount of Luxembourg's exports and were a major provider of labour in the region.