Testa Grigia is a mountain on the Italian side of the Monte Rosa Massif in the Pennine Alps. It is the highest mountain of the ridge that separates the Lys valley from the Ayas Valley, in Aosta Valley.
Wikipedia https://en.wikipedia.org/wiki/Testa_Grigia_(Aosta_Valley)
Address 11020, Italy
Coordinates 45°49'50.889" N 7°47'11.815" E