Complex sentence: Vikos-Aoos, part of the Natura 2000 ecological network and located 30 kilometers north of the city of Ioannina, is one of ten national parks in mainland Greece and has an elevation range from 550 to 2497 metres.
Split into simpler sentences: Vikos-Aoos, is one of ten national parks in mainland Greece and is located 30 kilometers north of the city of Ioannina. The park is part of the Natura 2000 ecological network and has an elevation range from 550 to 2497 metres.