page_title: Sana (river)
section_title: Middle course
hierarchical_section_title: Sana (river) / Course and sections / Middle course
caption_attribution_description: Gradski most
context_page_description: Sana is a river in the north-western part of Bosnia and Herzegovina. It is a tributary of the Una, into which it flows near Bosanski Novi. It is the longest of the nine rivers that flow through Sanski Most, and is 142 km long. It is not a navigable waterway.
context_section_description: At this point, passing through Ključ, the upper course ends and river enters its midsection narrow gorge, with steep but relatively low slopes, while turning its course to more clear south-to-north direction. The river here combines with the waters of several typical karstic streams, abundant in water but short in length. Its main tributary is water abundant the Sanica river, which flows east-to-west from the direction of Grmeč mountain, and in this section reaches the Sana from the left at Vrhpolje. After 72 km and the altitude difference of 262.52 m, the Sana then passes through Sanski Most and combines with the significant tributary rivers, the Dabar, the Zdena and the Bliha river, both from the left, and two other smaller one. From here it runs toward the town of Prijedor, where its middle section ends, and where it receives the waters of Gomjenica river from the right.
caption: The Sana river in the center of Sanski Most town.
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