The spring and the cave owe their name to the Occitan word "clamousa" (a woman who shouts or screams), because of the noise the underground river makes when in flood.

There is also a legend about a young shepherd on the Causse who used to send a sheep to his poor mother by throwing it into a ravine on the Causse, where the underground river carried it downstream to the resurgence.
One day, it was the body of her son that the mother found. It is said that, crazed by grief, she wandered for a long time the cave screaming all her despair.

This sort of legend, with a few variations, is very common in limestone areas with underground river networks. It confirms that people who live in these areas have long been aware of the direct link between resurgences in valleys and caves and the points where water filters into the surrounding plateaux and hills.