What is "opountia"

Opountia is a former municipality in Phthiotis, Greece with an area 129.534 km and a population of 3,201 inhabitants (2011 census). Since the 2011 local government reform, it is a part of the municipality Lokroi, of which it is a municipal unit. The seat of the municipality was Martino (pop. 1,923 in 2011).