stations in Bosnia and Herzegovina on the Unac, and their data is show in the table below: Klokot The Klokot is a short river with watershed area of about 94 km2 and a length of 4,5 km. It flows out of a very strong karst spring around 5 – 6 km west of Bihać and has an average discharge of 14 – 15 m3/s. Krka The Krka is a right tributary of the Una, and, for the entirety of its length, forms the border between Bosnia and Croatia. It's 4 km long and forms a small canyon. It has a watershed area of 119 km2 and is part of the Una National Park. Krušnica The Krušnica is a right tributary of the Una. Its source, a strong karst spring with an average discharge of 7 – 8 m3/s, is located 6 km south of Bosanska Krupa. It is around 7 km long and has a watershed area of 301 km2. One interesting thing to note about the river itself is the fact that a small branch of the Una river flows into the Krušnica first, before the Krušnica flows into the Una. A small hydroelectric power plant is also located near the river source. Economy Hydropower Due to the rivers's steep gradient, especially in the upper course, 942 MW of electrical energy could be produced if all the potential energy of the watershed was used, and currently, less than 1% of the river's hydroelectric potential is put into use. There have been multiple hydropower projects drafted to use the potential energy of the rivers biggest waterfalls and canyons, but they were met with fierce resistance from the local and international communities due to fear of the destruction of the river's natural and cultural heritage. Currently, there are only three smaller hydroelectric powerplants in the river's watershed: the small Bihać and Krušnica hydroelectric plants, and the larger Una Kostela plant. The small Bihać hydroelectric power plant is located near the city center, with the machine room being located at the end of a 1000 m long intake channel, taking water from the river near the city park. It was constructed in 1912. during the Austro - Hungarian rule in Bosnia, together with the electrical network of the city. The old defensive moat of the city was deepened, widened and repurposed as an intake channel for the power plant, utilizing the natural