Two mountain-top locations have been proposed as sites of worship for Stuffo: the Staufenberg near Gießen, in Hesse; and the Stuffenberg, now Hülfensberg, in the Eichsfeld district, Thuringia.
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The source for the latter designation comes from the 1602 Historia S. Bonifacii by Johannes Letzner, who claims that after Boniface destroyed the Donar Oak near Geismar (now in Fritzlar, Hesse) he traveled to the Stuffenberg in Eichsfeld, where the god Stuffo was worshiped by the local population.
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A 1756 image of the god being overthrown by the saint is found in the village of Küllstedt.