Egil castle was built in 5000 BC. It has an interesting structure. It was set on a unique rock. It is clear that the castle was very hard to conquer. It was surrounded by walls which have partially survived until today. It was used as a depot and shelter both for soldiers and civilians.
The excavations made in 1946 show that the province dates back to the Middle Paleolithic Age (20,000 - 15,000 BC). A lot of local caves - which were once inhabited - belong to this period. Throughout its long history, Eğil was the cradle of many civilizations - Assyrians, Urartians, Byzantine Empire, Roman Empire and Ottoman Empire.There are also Assyrian kings' rock graves which still stand despite centuries. The graves and caves around them can be seen northeast of the castle on the coast of the dam. They were built by carving the rocks in the shape of Egyptian scarves.
The four tunnels which can still be seen today were constructed by carving the rocks. They are thought to have been built to reach safe places in case of an emergency.
