Aoos is a river located in northwestern Greece, flowing through the Pindus mountain range. It is known for its stunning natural beauty and rich biodiversity, making it a popular destination for outdoor activities such as hiking and birdwatching. The river eventually joins the Vardar River, contributing to the region's water system. The Aoos River is also significant for its cultural heritage, as it runs through areas inhabited by various communities, including the Vardariotes. The surrounding landscape features lush forests and diverse wildlife, providing a habitat for many species. Conservation efforts are in place to protect this vital ecosystem.