The Tara River Canyon (Montenegrin: Кањон ријеке Таре / Kanjon rijeke Tare, pronounced [kǎɲɔːn târɛː]), also known as the Tara River Gorge, is a canyon on the Tara River in Montenegro and Bosnia and Herzegovina.
It is 82 kilometers (51 miles) long and the last 36 kilometers constitute the border between Bosnia and Herzegovina,Serbia and Montenegro. The canyon at its deepest is around 1,300 meters (4,300 feet) deep. These parameters make the Tara River Canyon one of the deepest river canyons in Europe, and indeed the world.
The Tara River, at its end making confluence with the Piva, becomes the Drina, and is some hundred and fifty kilometers long[clarification needed]. In its passage through the Tara National Park, the river has a mean fall of 3.6 meters/kilometer, making a host of waterfalls and cascades possible, thus creating what is known as the Montenegrin Colorado.
All along its flow, the Tara gets large quantities of water from numerous 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 are 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 liters 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 meters 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. Because of the quality of its water, and because of its unique ecological system, Tara in 1977 was put into the program “Covjek i biosfera” (Men and Biosphere) and inscribed into the ecological biosphere reservations of the World, being thus protected under an internationally issued convention.