Merta (river)
The Merta is a river in the Czech Republic, a left tributary of the Desná River. It flows through the Olomouc Region. It is long.
Characteristic
The Merta originates in the territory of Vernířovice in the Hrubý Jeseník mountain range at the elevation of. It flows through the territories of Vernířovice, Velké Losiny and Sobotín to Petrov nad Desnou, where it enters the Desná River at an elevation of. It is long. Its drainage basin has an area of. The average discharge at its mouth is 1.20 m3/s.The longest tributaries of the Merta are:
| Tributary | Length | Side |
| Klepáčovský potok | 11.3 | left |
| Kamenitý potok | 5.0 | right |
| Ztracený potok | 4.6 | left |