Baia de Fier is a commune situated in Gorj County within the Oltenia region of Romania. The administrative area is composed of two distinct villages: Baia de Fier and Cernădia.
The geography of the commune is defined by its proximity to several water bodies, including the river Pârâul Galben, which traverses the area, and the river Olteț, which flows to the east. Additionally, the site is home to Peștera Muierilor.