The Sajó ( ,
Hungarian) or Slaná (
Slovak) is a
river
A river is a natural flowing watercourse, usually freshwater
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...
in
Slovakia
Slovakia (; sk, Slovensko ), officially the Slovak Republic ( sk, Slovenská republika, links=no ), is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the ...
and
Hungary
Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...
.
Its length is 229 km, of which 110 km is in Slovakia. Its source is in the
Stolica Mountains
The Stolica Mountains ( Slovak: ''Stolické vrchy'') is a mountain range in Slovakia, the highest part of the Slovak Ore Mountains of the Inner Western Carpathians.
The Stolica Mountains are divided into four distinct morphological sub-assemblies: ...
range of the
Slovak Ore Mountains
The Slovak Ore Mountains ( sk, Slovenské rudohorie , hu, Gömör–Szepesi-érchegység, german: Slowakisches Erzgebirge or Zips-Gemer-Erzgebirge) are an extensive mountain range within the Carpathian Mountains, located mostly in Slovakia's S ...
. It flows through the Slovak town
Rožňava
Rožňava ( hu, Rozsnyó, german: Rosenau, Latin: ''Rosnavia'') is a town in Slovakia, approximately by road from Košice in the Košice Region, and has a population of 19,182.
The town is an economic and tourist centre of the Gemer. Rožňa ...
and the Hungarian city
Miskolc
Miskolc ( , , ; Czech and sk, Miškovec; german: Mischkolz; yi, script=Latn, Mishkoltz; ro, Mișcolț) is a city in northeastern Hungary, known for its heavy industry. With a population of 161,265 (1 Jan 2014) Miskolc is the fourth larges ...
. In Hungary it flows through the county of
Borsod-Abaúj-Zemplén. It flows into the River
Tisza
The Tisza, Tysa or Tisa, is one of the major rivers of Central and Eastern Europe
Eastern Europe is a subregion of the European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural, and ...
near