Road 77, also known as the Haraz Road, is a treacherous road linking Tehran, the capital of Iran, and Mahmudabad, a city on the southern Caspian Sea.
This treacherous road winding through the Alborz mountain range is one of the most important roads of Iran going from the capital of the country to the Iranian coast. Its highest elevation is at 2.701m (8,861ft) above the sea level.
This picturesque drive is 200 km (100 mi) long. The surface of the road is asphalted and includes several tunnels. The road is dangerous because of frequent mountain and snow slides, as well as countless auto and bus collisions.Remember in the Iranian weekends (Thursday and Friday) and holidays there is a heavy traffic jam on this road and to ease the movement of the cars, the road is turned to one way direction by police in the peak of traffic.