Histories
Herodotus
Herodotus. Godley, Alfred Denis, translator. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1920-1925 (printing).
His army, stationed along the Asopus river, covered the ground from Erythrae past Hysiae and up to the lands of Plataea [23.2667,38.2] (Perseus) Plataea. I do not mean to say that the walled camp which he made was of this size; each side of it was of a length of about ten furlongs.