Castro Marim, on R Guadiana, navigable up to at least Mertola

@article{bib_Wachsmann_2009_Palaeo,
author={Blot, Maria Luisa Pienheiro and Castro, Filipe and Conyers, Lawrence B and Davis, Dan and Dunn, Richard K and Ernenwein, Eileen G and Hale, John R and Hohlfelder, Robert L and Sheets, Payson and Wachsmann, Shelley},
journal={International Journal of Nautical Archaeology},
number={2},
pages={221--253},
publisher={Taylor & Francis},
title={The Palaeo-Environmental Contexts of Three Possible Phoenician Anchorages in Portugal},
volume={38}
}