A mountain. Unless you're Donovan. (His song There is a Mountain has the lyric, "First there is a mountain then there is no mountain then there is.")
A mountain range.
The cast of The Call of the Mountain - 1997 includes: Vandana Shiva as herself
you call it the PEAK
West Virginia is called "The Mountain State".
Mount Kilmanjaro is the highest mountain in Africa .
Puma, Cougar, and Mountain Lion.
The top of the mountain is typically known as the 'peak' or 'summit'.
A group of many mountains is called a mountain range or a mountain chain.
mountain range
Tom
the source
A mountain range.