a mountain range
The Dolomite mountains extend across northern Italy.
The name given to a chain of islands is an archipelago.
That would be the Himalayan chain of mountains.
You may be thinking of the Trans-Antarctic mountains.
A cordillera is the term given to a chain of mountains. Mountains do not have vocal cords.
A name for a row of connected mountains is a "mountain range." Mountain ranges are a series of peaks and ridges that are geographically linked together. Examples include the Rocky Mountains in North America and the Himalayas in Asia.
Appalachian Mountains (oldest in US)
Mid-Atlantic chain
the hee hee
Canmore
The Rocky Mountains you idiot!
The collective nouns for mountains are a chain of mountains or a range of mountains.