It is located somewhere in England. Mortmain Mountains is not the name you find now, the name has changed. There is a possibility that it is one of the many 'Alps'.
I don't think they are real because on the website Snicket.wikia.com it says that the Mortmain Mountains is a fictional mountain range.
It is on the Mortmain Mountains.
The Baudelaires go into the mortmain mountains.
Mortmain - 1915 was released on: USA: 6 September 1915
The Atlas Mountains are the mountains located in northwestern Africa.
The Pensacola Mountains are not located in any country. It is located on the continent of Antarctica.
scythian mountains was located in scythia
Yes hot springs is in the ouachita mountains
The Balkan Mountains are located in Europe.
FOLDED MOUNTAINS are located in the himilayas
It is impiled in book 8 that they are still alive, but that hypothesis is disproved in book 10, where the siblings fail to find a parent in the Mortmain Mountains. In book 9, the siblings try to preapare an escape vehicle to go to the Mortmain Mountains, but get stopped once again by Count Olaf.
The Queen Maud Mountains are located in Antarctica.