A "range" is a contiguous group of mountains, and includes all the mountains in the group. An "area" may be defined by political borders or other reasons of convenience, but also includes all the mountains within the area. This is neither, since it will only ever include only ten mountains within one area (or one mountain from each of ten areas) and exclude lots of nearby mountains in the same geographic area(s). What you've got here is a List.
Thanks for the comments, I will include all other Moz mountains in this "area"
what about height, localisation etc...
Certainly off the beaten path. Glad to see it on SP.