There are several mountain chains in Antarctica, and you may be thinking of the Trans-Antarctic mountains.
the ella mountain chain
You may be thinking of the Trans-Antarctic mountains.
The three largest mountain ranges on the Antarctic continent are the Transantarctic Mountains, the West Antarctica Ranges, and the East Antarctica Ranges. The Transantarctic Mountains compose a mountain range in Antarctica which extend, with some interruptions, across the continent from Cape Adare in northern Victoria Land to Coats Land. These mountains serve as the division between East Antarctica and West Antarctica. They include a number of separately named mountain groups, which are often again subdivided into smaller ranges.
The Transantarctic Mountain Chain
This is the name of the highest peak in Antarctica.
The Himalyas is the mountain chain in southern Asia.
The Alps is the longest mountain chain in Europe.
The mountain chain that stretches across North Georgia is called the Blue Ridge Mountains.
The Trans-Antarctic mountains cut through the continent: all of Antarctica's edges are essentially beaches or ice shelf cliffs.
This is the Brooks mountain range.
Andes is the Longest mountain chain in south america.
The "Transantarctic Mountains" divide east and west Antarctica. The mountain range probably got that name because it spans the continent.