Don’t think the Rockies are volcanic. I can’t find any sources to support that.
From Wikipedia
The current Rocky Mountains arose in the Laramide orogeny from between 80 and 55 Ma.[11] For the Canadian Rockies, the mountain building is analogous to pushing a rug on a hardwood floor:[12]: 78 the rug bunches up and forms wrinkles (mountains). In Canada, the terranes and subduction are the foot pushing the rug, the ancestral rocks are the rug, and the Canadian Shield in the middle of the continent is the hardwood floor.[12]: 78
There currently aren’t any active volcanoes in the Canadian Rockies, but there is still magma towards the base of them that we’d run into if we tried to bore tunnels straight through. In theory, we could bore tunnels at a sharp incline to go over the magma; but that basically eliminates all the benefit vs just building rail lines on the surface like we already have, plus there’s the added complexity of trying to make an earthquake-safe tunnel that crosses a fault line.
Don’t think the Rockies are volcanic. I can’t find any sources to support that.
From Wikipedia
https://en.wikipedia.org/wiki/Category:Volcanoes_of_the_Rocky_Mountains
https://en.wikipedia.org/wiki/Geology_of_the_Rocky_Mountains#Terranes_and_subduction
There currently aren’t any active volcanoes in the Canadian Rockies, but there is still magma towards the base of them that we’d run into if we tried to bore tunnels straight through. In theory, we could bore tunnels at a sharp incline to go over the magma; but that basically eliminates all the benefit vs just building rail lines on the surface like we already have, plus there’s the added complexity of trying to make an earthquake-safe tunnel that crosses a fault line.