Today the village of Passô sits just below the N2 road as it winds its way from Vila Nova do Ceira to Coimbra. The small hamlet, is situated on a track that leads through the woods to the gorge of Candosa, and looks down on the houses of Vila Nova do Ceira and across to the gorge. Twenty thousand years ago the hill behind the village stood in the way of the Ceira and Sotão glaciers. As the ice retreated, bands of clay and moraine were left behind, and can be seen above the village alongside the N2. There is also one of the best geological rock formations in Portugal, where the road cuts through sedimentary rock that has been folded into giant chevrons by the same forces that created the mountains of central Portugal, the Pyrenees and the Alps.