Western Carpathians (Munţii Apuseni), Southern Carpathians (Carpaţii Meridionali), Eastern Carpatrhians (Carpaţii Orientali); but for detailed data I need a more clear question from you (how to count the mountains ?).
The most well known mountains in Romania are the Carpathian Mountains called Carpati in romanian. More information can be found here http://en.wikipedia.org/wiki/Carpathian_Mountains
Romania has a long range of Carpathians Mountains.
Carpathians Mountains
maddie and madison mountains ;)
This is Transylvania.
Vîrful Moldoveanu - 2 544 meters
These are the Carpathians Mountains.
Carpathian Mountains
The highest peak in Romania is Moldoveanu - 2 544 metres.
The highest mountain: Moldoveanu, 2 544 m. The biggest city is Bucharest: approx. 1 900 000 inhabitants in 2014.
The biggest lake in Romania is Razim (also spelled Razelm).
Romania
There are many little rivers in Romania but Romania has got the biggest part of Danube.
Romania has the Carpathian Mountain ranges.
The biggest city in Romania is Bucharest.
Tulcea is the biggest southern county.
The biggest city in Romania is Bucharest (București) with approx. 2 000 000 inhabitants.
Romania is not a big country, Romania has an area of only 238 391 km2.
Carpathian Mountains are in Romania; Transylvania is a province of Romania.
The highest peak in Romania is Moldoveanul - 2 544 m.