Wikipedia
Kastellia (, before 1979: Καστέλλι - Kastelli) is a village in the municipal unit of Gravia, Phocis, Greece. It is situated at the western end of the wide Cephissus valley, at the foot of the mountains Giona and Oeta. It is 3 km northwest of Gravia, 19 km north of Amfissa and 23 km south of Lamia. The Greek National Road 27 ( Damasta - Amfissa - Itea) passes southeast of the village. The railway from Athens to Thessaloniki passes east of the village, with the nearest railway station at Bralos, 4 km east.
Kastellia has an area of app. 37,468 acres (151,630 m²) and an average altitude of 450m. The ground is semi-highland consisting of: (1) 8,914 acres of cultivated land, (2) 11,368 acres of partial-forestry land, (3) 13,925 acres of forestry quality land. The remainder is allocated for housing and roads.
The population has been steadily decreasing. The 1928 census found 1,066 inhabitants. By 1961 it had fallen to 827. By 1991 it had dropped to 779 and the latest census, in 2001, counted only 549.