The Coll de Manrella (711 m.) is a cross-border road pass located in the Pyrenees , connecting the French department of Pyrénées-Orientales to the province of Girona, Catalonia. It is particularly interesting as it has a Civil War monument as it is near this spot where the Catalan President Lluís Companys , the Spanish President Manuel Azaña and the Basque Lehendakari José Antonio Aguirre entered France.
Near the rural crossing there is Bordermarker #559 carved on a stone. In the Col itself there are road signs and a graffiti covered rock which is country specific. More details here