Greek National Road 15 (Greek: Εθνική Οδός 15, abbreviated as EO15) is a single carriageway road in northern Greece. It connects Agios Germanos, near the border with North Macedonia, with the Greek National Road 6 near Kalampaka. It passes through Kastoria, Siatista and Grevena.
40°10′58″N 21°29′51″E / 40.1827°N 21.4975°E
Lake Pamvotida or Pamvotis (Greek: Λίμνη Παμβώτιδα/Παμβώτις), commonly also Lake of Ioannina (Greek: Λίμνη των Ιωαννίνων, Limni ton Ioanninon) is the largest lake of Epirus, located in the central part of the Ioannina regional unit in northern Greece. The regional capital Ioannina to the west and the town of Perama to the north are urban settlements fringing the lake while the remaining of its periphery is composed of farmland. The lake features small fishing ports and a boating port. There is a regular boat service to the Ioannina Island. The Greek National Road 6 surrounds the northern half of the lake.
Egnatia (Greek: Εγνατία) is a former municipality in the Ioannina regional unit, Epirus, in northwestern Greece. Since the 2011 local government reform, it is part of the Metsovo municipality, of which it is a municipal unit. The municipal unit has an area of 131.424 km. In 2021 its population was 1,867. The seat of the municipality was in Mikro Peristeri. The municipal unit is connected with both the GR-6/E92 (Larissa - Ioannina - Igoumenitsa) and the new Via Egnatia.
Antichasia (Greek: Αντιχάσια) is a forested mountain range in the northern Trikala and Larissa regional units in Thessaly, Greece. The range is part of the eastern foothills of the Pindus mountains. Its highest point is 1,424 m elevation, in the eastern part of the mountains. The Meteora rocks near Kalampaka are considered part of Antichasia. Antichasia stretches from the valley of the river Mourgkani in the west to the valley of the river Titarisios in the east. Both are tributaries of the river Pineios, which flows southwest and south of the mountains. Its length is approximately 45 km from east to west. The nearest mountains ranges are Chasia to the northwest and Kamvounia to the northeast. The vast Thessalian Plain is to the south.
The mountain range gave its name to the municipal unit Antichasia in the western Larissa regional unit. Other places in and near the mountains are Kalampaka (southwest), Verdikousa (east) and Koniskos (north). The Greek National Road 6/E92 (Igoumenitsa - Ioannina - Trikala - Larissa) passes south of the mountains, and the Greek National Road 15 (Kalambaka - Grevena - Siatista) passes west of them.