The aim of this paper is to show how the Roman territorial planning patterns
in the Ebro valley were always at the service of the strategic and economic
importance given to this waterway by Rome, in the context of a policy of
conquest and of economic exploitation. Firstly, the literary and
archaeological documentation will be exposed to prove that the Ebro River was
navigable upstream as far as Vareia (Varea-Logroño). Secondly, attention will
be paid to the territorial limits of the Conventus Caesaraugustanus and to the
circumstances which surrounded the origin and promotion of the most important
towns in this conventus. It will be shown that this territory was structured
and organized based on the Ebro and its tributaries