 The Eichelbach has its source in Vogelsberg, north of the Hoherodskopfes and east of the town Schotten-Breungeshain.It discharges into the Nidda river at the town of Nidda.Since the summer of 2009 a retention basin is being built upstream from Eichelsdorf by the Nidda water board, with a capacity of , to protect the villages on the Eichelbach and the Nidda.