ðə ɹˈɑːk æt sˈeɪnɑːn, ˌɔn ɐ pɹˈɑːmɪnənt loʊkˈeɪʃən ˌoʊvɚ ðə vˈæli, wʌz jˈuːzd æz ɐn ˈeɪntʃənt əbzˈɜːvətˌoːɹi ænd pˈɑːsᵻbli ɐ sˈɪɡnəl stˈeɪʃən.
The rock at Saignon, on a prominent location over the valley, was used as an ancient observatory and possibly a signal station.