User blog comment:Darkcloud1111/Good Idea, Bad Idea~Mountain Glenn/@comment-5217560-20141013022054

I was wondering why you didn't do one last week! Twas a good one last week amd si was this one!

Regarding mountain glenn, well from my understanding of oobleck's explanations, mountain glenn was supposed to be an expansion vale. So it was its own city, hence the buildings. However, because of no barriers, grimm interfered, so using the subway system that the MG people built,  they went underground. Since the air teavel to mountain glenn seems to take some minutes, I assume the subways are extensive as well. So the people probably evacuated quickly and inconspicuously into the tunnels. Then, they just expanded the subway system into its own underground haven....until a grimm mishap.