Middle Douro valley enclosures (taken from Delibes et al. 2014).
A relatively recent publication presents a synthesis about ditched enclosures in the middle Douro valley, in central-north Iberia. Also there the phenomena of enclosures revealed itself with great intensity in the last years.
But one of the most interesting aspects of this new set of ditched enclosures is that they are almost all causewayed enclosures, quite similar to the ones known in the rest of Europe.
This type of enclosures was not yet discovered in Portugal. Maybe in the future some may be detected in Beira Alta or Trás-os-Montes, in the areas that mark the western limits of the north Meseta. But, so far, the Portuguese enclosures are quite different and in the Guadiana basin they tend to privilege the sinuous patterns, side by side with linear layouts.
This shows us how the same general phenomena may be expressed in different ways in regions that are not that far away.
G. Delibes de Castro, M. Garcia Garcia, J.Olmo Martín, J. Santiago Pardo (2014), Recintos de fosos calcolíticos del vale médio del Duero. Universidad de Valladolid.