The length of the boundary section of this river is 475 kilometers and the length of the head to river series is about 910 kilometers. This river is 1072 kilometers long and is the longest Iranian rivers, Karon. At present, Khodaafarin Dam and Qiz-e-Qaleesi Dam are being constructed jointly with the Azerbaijan Republic on Aras. Up to now, five bridges have been built on the Ares, which include the Jolfa Iron Bridge, the Jolfa Soleil, the Poldasht Bridge in the city of Maku, the Khodafarin Bridge in Karadah, the Bridge of Norduz on the Armenian border.
In the Aras River, there are 805 inhabited small and large islands called "supper" in the local language. Based on the border agreement, 427 islands belong to Iran and 382 islands to the Soviet Union (and now to Azerbaijan). These islands can be used only for the grazing of animals around the river. Most of these islands are called numbered names, and some islands also have names such as: Kharama, Bideoz, Pyotaler, Gharaghabah and many.
The Arus River crosses the cities of Maco, Ahar, Marand and Garmi in the provinces of East Azarbaijan and West and Ardebil. Aras is a permanent river and the border of Iran, Republic of Azerbaijan and Armenia. Aras is fed from two separate branches in Armenia and the other in Turkey and the Jabal Ararat Dynasty (Aghri), which reaches the site of Zanganeh, at the northwest of Iran. This area is a common border between Iran and Azerbaijan and Turkey. Thereafter, the Aras River to the local named Bahram Tape is the common border of Iran, Azerbaijan, and Armenia.
Its area is approximately 10320 square kilometers and about 39% (39,000) square kilometers make up Iranian lands.
Some argue that the Aras is associated with the two rivers of Pishoin and Geon referred to in the second chapter of the Bible.
The river Aras was selected in 1813 following the Treaty of Turkmenchai as the border between Iran and Russia, and all the northern parts of the river were separated from Iran and added to the territory of Russia. Later Iran and the Soviet Union together built a bridge in the Poldasht area called the Aras dam.
In determining the ownership of the Aras islands between the boundary boards of Iran and the Soviet Union, it was decided to cross the border line of Aras and if there were several branches of the river in the local area, the middle part of the main branch would be borderline. On October 6, 1334, when the property of the island was located near the Abbasi checkpoint, there was a dispute between the Soviets and Iran over which main branch of the river was in this place. An Iranian officer named Lieutenant Noorullah Kathiri, the planner of the Tabriz Division, was deeply responsible for proving that the branch that was beneficial to Iran was deeper and therefore the main branch was ferocious with his horse. He and his horse disappeared under the waves, but one Iranian border guard, Samad Madadgholi, managed to save the Iranian officer. The Russian delegation, seeing this scene, accepted Iran's ownership of the island 130 in this branch of the river. The island of 130 was later named after the approval of the supreme authorities of Iran by a large island and was given the honor and reverence to Lt. Noorollah Kasiri Danesh.
The several islands of the Arus River have good pasture. The Arus Sea basin is located in the northern half of East and West Azarbaijan and Ardebil provinces. Moderate climate is comparable to that of the southern parts of these provinces. In addition to contributing to the moderation of the climate, many rivers with discharge (volume of water In time units, some of these rivers have several branches in the neighboring countries (Turkey-Azerbaijan-Armenia) and eventually enter the Caspian Sea.
The bed of the Aras River has a great slope in which the water flows at a fast pace and the third Iranian river can be regarded as water power.
The fish of this river are about ten species, about 6 species are larger than other native fish of this river and have more resistance than other fish. Hence, these fish are highly valued by athletes and fishermen.
It originates from the Bingol Mountains of the Anatolian Region of Turkey, and on the Turkish and Armenian borders to the Arpa Tea, then the Nakhchivan border is plotted along 11 km and after crossing the border between Iran and Nakhchivan, the border between Iran and Armenia And crossed the border between Iran and the Republic of Azerbaijan again and in the northern part of the Ardabil province (Parsabad city), it entered the Republic of Azerbaijan and sinks to the Kura River.
The width of the Aras River in Jolfa is sometimes up to 200 meters and its depth and depth are 2 to 3 meters. The widest point of the river is near the city of Julfa, which is more than 200 meters wide and more than 4 meters deep.
In the long course of the route, there are changes, including from the source to the Jolfa, mountainous areas, and from Jolfa to Aslandus, mountainous and severe, and the width and depth of the river vary in the course of the journey.
In the distance between Jolfa and Aslandoz, the Aras between the mountains of Karaj and the mountains of Azerbaijan, in some places (the proximity of the village of Golan) its width is less than 20 meters; in the vicinity of Poldasht, its width is about 90 to 100 M and its depth is 2 meters.
Every year, hanging hooks in the summer indicate the presence of athletes and sometimes families interested in fishing.
The Aras River, which runs across the northwestern barrier of the country, is full of water in all seasons, but due to environmental issues and spawning fish licenses are issued for fishing in certain Days of the year.
During the Cold War, some Communist Iranians escaped to the Soviet Union through this river. Samad Behrangi, the author of Persian children's books, drowned in the river.
St. Stephen's Church is located 16 km west of Jolfa, 3 km southwest of Aras, in a deserted village called the Sham Valley. The name of the church is inspired by the name of the first martyr of Pashtun, the Christian way, due to its establishment in the village of the Valley of the Sham It's also called the name.
Kardasht Bath is located along the Aras River and is near the village of Karsht. It has a very interesting interior design and wall hangings. The bath dates back more than two centuries.
Beautiful nature and rich history have transformed Aras into one of the special tourist areas. The high mountains of the region read aloud every year. The beautiful Aras River with its whirlwind path and its strange insights is another tourist attraction. Arasbaran wildlife with its unique vegetation and the Kiyamaki area with unique biodiversity are other tourist attractions in the area.