Les Escaldes, or earlier Les Caldes = hot water. The geothermal hot water springs of Escaldes had been important for an early textile industry of Andorra, but nowadays hot water of Escaldes still is used for heating the houses, and of course for natural thermal spa's like Caldea and other wellness offers of the modern Andorra. The center of that is the "shadow" side of Escaldes, where the Riu Madriu joins the Riu Valira. A very narrow valley of Andorra.