The average altitude of Mount Vernon is 1,500 meters, with a continental climate with very cold winters. This mountain is the continuation of Varnounta Mountain and its highest peak is Vitsi at an altitude of 2.128m. It is separated in two branches: Kleisoura and Radosi. In the area there are many abandoned villages and pastures. The wild trout lives in the streams of the region and the whole area is part of the network NATURA 2000.

The National Park is 45 km. from the town of Florina.

The Great and Small Prespa lakes are located at the tri-border of Albania, the Former Yugoslav Republic of Macedonia and Greece. The area is protected by Greek, European and international conventions, and the Small Prespa Lake is protected by the Ramsar Convention as a unique wetland. In 1991 the company for the protection of the Prespa lakes was created with the help of WWF who supported the efforts of the locals to protect the natural wealth of the region. Prespa Lakes have joined the network NATURA 2000.