The Haferberg is on the watershed between the river Fulda to the west and river Werra to the northeast. The Rautenbach rises on the northern side of the hill and the Hungershäuser Bach to the southeast, near the Umschwang; both are western tributaries of the Werra. The Wengebach rises southeast of the hill, also near the Umschwang, and to the west, the Endschlagbach, which are eastern and northern feeders respectively of the Fulda tributary, the Nieste.