The Sacro Monte di Graglia is a pre-Alpine locality located in Graglia, in the province of Biella, in Piedmont, a few kilometers west of the provincial capital. It is located downstream of the most majestic peak of Mombarone, almost on the border with the Aosta Valley; it mainly hosts the homonymous sanctuary (812 meters above sea level), dedicated to the Black Madonna and connected to the cult of Our Lady of Loreto, in the Marche region. It is therefore part of that system of pre-alpine devotional complexes that characterized a widespread popular Marian and Christian religiosity, which was expressed between Piedmont and Lombardy starting from about the 16th century, such as, for example, the re-enactment of the Passion of Christ in the nearby town di Sordevolo, or other similar places such as the Sacro Monte di Arona, the Sacro Monte di Oropa, the Sacro Monte di Varallo, the Sacro Monte di Ghiffa