ɪɾ ɪz loʊkˈeɪɾᵻd æt ðɪ ˈɛnd ʌvðə ɡˈɑːmz, dᵻɹˈɛktli bᵻfˌoːɹ ðə fˈɜːkə ænd ɡɹˈɪmsəl pˈæsᵻz, ˌʌndɚnˈiːθ ðə ɹˈoʊn ɹˈɪvɚ sˈoːɹs æt ðə ɹˈoʊn ɡlˈeɪʃɚ.
It is located at the end of the Goms, directly before the Furka and Grimsel passes, underneath the Rhône River source at the Rhône Glacier.