Black Mountain Montana is set in Montana, USA , not another country. The mod description says it uses real-world terrain from the Big Flat area near Missoula, Montana, and is described as “Big Sky Country”.

Quick scoop

  • Map name: Black Mountain Montana.
  • Location: Montana, United States.
  • Terrain basis: Big Flat area near Missoula, Montana.
  • Style: mostly mountainous forest with limited farming.

So the answer to “what country?” is the United States.