Ffynon Badarn is a Chalybeate well located located by the side of the A44 road between Llanbadarn Fawr and Aberystwyth.

"A chalybeate spring......was discovered in the year 1779 at a short distance from the eastern extremity of the town on the road to Llanbadarn fawr, and near Plas Crug: the well is covered with a small square building, from one side of which the water issues by a spout". S Lewis 1833