While there are archeological remains dating back to the 8th century, this hill is remarkable as part of a chain of communication towers, in effect a visual telegraph system, that linked Avignon to Narbonne.
In 1794, a series of these towers created a line of sight telegraph system linking Paris to Lille. In 1834, a similar line of towers and signals was built, of which this was a part. Using two arms and smaller arms attached to the larger ones, a complex system of transmitting information based on the angle of the arms and the secondary arms was created. Two telescopes, one pointing "upstream" and the other "downstream" were used to read information coming in as well as confirm the proper transmission of that information on to the next tower.
A much more detailed explanation is found on Wikipedia.
Languedoc-Roussillon is a French region which is composed of five departments. It is bounded by Spain, Andorra in the south and along the Mediterranean Sea (Gulf of Lions). Other French region limit the regions of Languedoc-Roussillon: Provence-Alpes-Cote d'Azur, Rhone-Alpes, Auvergne, Midi-Pyrenees. The natural boundaries are the Pyrenees and the so-called threshold Lauragais, the Cévennes and the Rhône.In 2004, the Regional Council chose a joint new logo symbolizes the sun, which has the motto: "Living in Septimania. In fact, the current president of the Regional Council, Georges Freche wanted to rename the area "Septimania", but then it has to do so. Septimania is an old name, used since the fifth century for the region, but the Department of Lozère was not yet among them. Above all, the Catalans rejected by an overwhelming majority of this amendment. After numerous protests, including a demonstration of about 8,000 people on the 8th October 2005 in Perpignan, Georges Freche was the project of Bezeichnugsänderung in "Septimania" and the name of the region Languedoc-Roussillon "is introduced as an official designation for the Regon.The languages of the region along with French, Occitan (Languedoc, Auvergne, Provence), and Catalan. The name of the region favors Lengadòc-Rosselhon Occitan and Catalan Rosselló-Llenguadoc.