Note 2404 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
The jugerum was properly 240 feet long and 120 broad, but Pliny uses it here solely as a measure of length; corresponding probably to the Greek πλέθρον, 100 Grecian or 104 Roman feet long. Tempe is the only channel through which the waters of the Thessalian plain flow into the sea.