My latest city is built on and around some rather mountainous terrain. It is requiring some engineering creativity. I’m trying to keep the terraforming to a minimum, and use the natural shape of the land. It may never become a megatropolis, and that’s OK.
As for mass transit, the city has cable cars and a tram line. A train line seems impossible, and I don’t know how I can fit in an airport. The deep fjords make ferry lines unlikely. Blimps are a possibility for future growth.
It’s a challenging city. Also, it rains a lot.
Welcome to Glenns Fjord.