The Tara River Canyon (Bosnian: "Kanjon rijeke Tare", Serbian: "Кањон реке Таре", "Kanjon reke Tare", Montenegrin: Kanjon rijeke Tare), also known as the Tara River Gorge, is the longest canyon in Montenegro. It is 82 kilometers (50 mi) long and is 1,300 meters(4265 feet) at its deepest, making it the deepest river canyon in Europe. The canyon is protected as a part of Durmitor National Park and is a tentative UNESCO World Heritage Site. The Tara River cuts through the canyon.
The Tara River, at its end making confluence with Piva, becomes the Drina, and is some hundred and fifty kilometres long. In its passage through the Tara National Park, the river has a mean fall of 3.6 metres/kilometre, making a host of waterfalls and cascades possible, thus creating with its uniqueness The Montenegrian Colorado.
All along its flow, the Tara gets large quantities of water from numerous sources, and quite a few tributaries. The most important tributaries on the left bank of the Tara are Ljutica and Susica, and the most important tributaries on the right bank being Vaskovaska rijeka and Draga. The most important source is the source Bajlovica sige, a source placed on the left bank of the Tara river giving to the Tara a few hundred litres per second, where the water sourcing from the Bucevica cave falls into the Tara more than thirty metres high, and more than a hundred and fifty metres wide. Very special are the Tara cascades.
The roar from the cascades is heard on the very peaks of the canyon. There are more than forty cascades, the most famous being: Djavolje lazi, Sokolovina, Bijeli kamen, Gornji tepacki buk, Donji tepacki buk etc. Because of the quality of its water, and because of its unique ecological system, Tara in 1977 was put into the programme “Covjek i biosfera” (People and Biosphere) and inscribed into the ecological biosphere reservations of the World, being thus protected under an internationally issued convention. There are rocky and pebbly terraces, sandy beaches, high cliffs, and more than 80 large caves along the canyon.