On a 425 meter high mountain saddle in the Zollbuche nature area, on the old direct route from the hinterland to the former provincial capital Gießen, there is a well over 400 years old oak. It has a crown diameter of about 24 meters and a trunk circumference of 4.10 meters (measured at 1 m height). Their location about 10 meters behind the municipal boundary of Bad Endbach (Wommelshausen) in the municipality Gladenbach (Weidenhausen), it is a former border tree. Here and until the construction of the Aar-Salzböde railway, traveling merchants (stocking men), migrant workers and conscripted soldiers were tearfully renounced by their relatives and friends. Hence her name "Howling Oak". During the First and Second World War, the willow oak tree was again a farewell tree, this time in the opposite direction. For the conscript soldiers from Bischoffen-Oberweidbach, the station in Wommelshausen-Hütte was the nearest.