A narrow path and a lot of undergrowth lead to this impressive rock church. There is no signage.
I was able to find the following information on the Internet, which translates as something like the following:
"The hermitages are some of the most important and evocative monuments in Maremma Castrense and particularly in the territory of the municipality of Ischia di Castro. Hermits and Anchorites occupied, restructured and transformed some abandoned Etruscan tombs in the Middle Ages along the river Fiora and its tributaries according to original and special ones Models of sacred and rock architecture in hermitages ... At the foot of the hermitage, hidden in the vegetation, the remains of a spring can be seen.A steep path leads to the entrances of the numerous rooms of the hermitage, the central one of which is a church with still visible There are traces of frescoes, probably from the 15th century. Next to the church there are other rooms that were used for activities related to worship and work: the rooms where you can see stairs and traces of ancient mezzanines that have now disappeared , are equipped with niches and built-in cupboards attests. The date "1614" is engraved on a wall which, along with archival documents, suggest that the hermitage was in use until the 17th century. The second part of the settlement is intended for the residence of the monk who ran the parish, as well as other rooms intended for storage facilities and warehouses "