- Greek National Road 20
and forms a joint.
It enters a valley area and passes into the
Pindus mountains for approximately 80 km, it enters the valley. It passes by theVoio mountains to the north, the mountains of the northwest Grevena and does not pass, theGramos to the north,Smolikas andTymfi to the southeast. From the GR-15 to southwest of Konitsa, the road are curvy and slow. for about 100 km. Since the 1970s, it bypasses the town of Konitsa and enters the valley of Ioannina after passing some mountains.The highway crosses the
Aoos river. It forms a junction with the GR-26 (E853 ) which is a highway toKakavia andAlbania with theSH-4 . It enters several towns and villages as well. It creates a junction with theIoannina Bypass and the old GR-6, the highway ends in the city of Ioannina as for 6 km with the joint of the GR-5. For 25 km, it is part of theE65 and theE853 .The highway was first paved in the mid-20th century.
Junctions
*Kozani
*Vatero
*Siatista
*Siatista West, with theVia Egnatia (GR-2/E90 )
*Mikrokastro , Siatista
*Kaloneri,Eratyra , Siatista
*Neapoli
*Future interchange with the new GR-15 (unplanned)
*Lefkothea
*Tsotili
*Agiasma ,Polykastano ,Damaskeina
*Morfi
*Epano Arena Pass
*Pentalofos, Polykastano
*Elatochori,Zouzouli
*Nea Kotyli ,Pefkofyto ,Gramos ,Nestorio
*Drosopigi
*Kastania,Vourbiani , Grammos, Oxia,Plikati
*Agia Paraskevi,Fourka ,Smolikas
*Molista
*Melissopetra, Konitsa
*Konitsa , Elefthero,Vikos-Aoos National Park
*Aoos river
*Melissoptera
*Pogoniani
*Kalpaki , junction with the GR-22, Kakavia,Gjirokastër
*Negrades
*Petsali
*Kranoula ,Perivleptos
*Eleousa
*Eleousa West, junctions with the GR-6 and the GR-5.
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