The Mediterranean railway corridor is a project of European scale transport infrastructure to be implemented in the Spanish Mediterranean regions in order to improve the interconnection with the French network. At national, regional and even local level, many political, economic and academic stakeholders take a part in the debate around its realisation and they contribute to elaborate a multiple territorialisation according to their singular visions and objectives. To give evidence of this complex territorialisation, the analysis of stakeholders' discourses and the mapping of their representations of the corridor together with context elements, lead to the production of a series of map hypothesis to be presented to the actors as a basis for interviews and field work. This series of maps displays plural visions of the " corridor territory " that cross the institutional boundaries and force to take into account multi-scalar spatial and even non-spatial dimensions.