Raschpëtzer Qanat

49°40′8.26″N 6°8′33.83″E

The Raschpëtzer is a qanat located north-east of Helmsange, in the commune of Walferdange, in southern Luxembourg.

It is a particularly well preserved example of a qanat and is probably the most extensive system of its kind north of the Alps.^{[citation needed]} It has been under systematic excavation for the past 40 years. To date^[when?] some 330 metres (1,080 ft) of the total tunnel length of 600 metres (2,000 ft) have been explored.^{[citation needed]} Thirteen of the 20 to 25 shafts have been discovered.^[1]

The qanat appears to have provided water for a large Roman villa on the slopes of the Alzette valley. It was built during the Gallo-Roman period, probably around the year 150 and functioned for about 120 years thereafter.^{[citation needed]}