Fontaines Salées archeological site, Archaeological site in Saint-Père and Foissy-lès-Vézelay, France.

Fontaines Salées is an archaeological site on the left bank of the Cure, 3 km southeast of Vézelay, spanning Foissy-lès-Vézelay and Saint-Père. Its low stone and mortar wall foundations, built of stacked flat gray and tan stones, form a roughly circular enclosure with straight internal divisions radiating from the center. Raised rectangular platforms stand at the left and lower left, and a separate straight wall section extends to the upper right.

Salt springs here were first tapped by wooden catchment wells built between about 2309 and 2223 BC, in the late Neolithic. The wells were abandoned in the early Bronze Age and partly reused later; around 900 BC the spot served as a burial ground. In 1934 the medievalist René Louis, seeking the battle site of Vaubeton, excavated and uncovered Gallo-Roman baths. Sixteen hollowed oaks found in 1942 were dated to the Iron Age and had been used to build nineteen salt wells.

The site was long called "le puits de sel", the salt well, after the brine springs that gave it its name. The wooden well shafts found in 1942 were hollowed from sixteen oak trunks and dated to the Iron Age; they supplied salt working in the Avallonnais. Visitors can still see the stone kerb around the one well that releases intermittent gas.

The site lies on the left bank of the Cure, 3 km southeast of Vézelay, near the old Autun–Auxerre ford. Paths cross gravel and low wall foundations, so wear sturdy shoes. The ground is uneven around the excavation pits.

In 1942, excavations for the baths' water supply uncovered sixteen hollowed oaks, dated by carbon-14 to the Iron Age; they had been used to build nineteen salt-extraction wells, and they survive in very good condition. The trees were large enough to suggest they had been kept for several generations before being felled with copper or bronze axes.