The Hülfensberg (called Stuffenberg in the Middle Ages) is a 448 m high, heavily wooded mountain in the Geismar municipality in the Eichsfeld district, Thuringia, Germany.

The mountain has been a pilgrimage site since the late Middle Ages, and on its summit are a church containing a 12th-century crucifix, a Franciscan friary, a chapel dedicated to Saint Boniface, and a large free-standing cross.

[6] During the East-West division of Germany, the Hülfensberg was less than a kilometer from the border, on the eastern side, meaning that opportunities for pilgrimage were restricted to a small number of people.

According to Father Heribert (one of the Franciscan friars, 2010), attendance dropped by two-thirds in 1953, the year after the Hülfensberg was placed inside the expanded and protected border area.

[6] The oldest document pertaining to the Hülfensberg is a papal deed from 1351,[13] which names the parish St. Salvator auf dem Stuffenberg.

[16] Another legend says that Boniface stood on the top of the Hülfensberg and said, Wann wird endlich Frieden schweben über dieser schönen Aue ("when will peace at last hover over this lovely forest?").

When in May 1952 the East-German government strengthened the nearby border and its Sperrzone (which placed the Hülfensberg inside the protected zone), the monastery and the church suffered a steep drop in attendance.

[2] In March 1990, after the Unification of Germany, a plaque was dedicated at the foot of the cross to remember the "victims of the fascist and stalinist dictatorship".