County Offaly is home to 56 named mountains. The highest is Arderin at 527 m.
There are 56 named mountains in County Offaly. The highest and the most prominent mountain is Arderin.

Yes. County Offaly has 56 named mountains. The highest is Arderin at 527 m.
The highest mountain in County Offaly is Arderin, at 527 m.
County Offaly has 56 named mountains.
