> This isn't flat land. There are expansive mountain ranges that make it difficult to build and any flat land that is buildable is ALSO prime agricultural land that is worth millions.
Japan's Shinkansen started service in 1964, and the country is known for its mountains and earthquakes. Hell, forget Japan, California's mountain ranges somehow didn't stop America from building I-5, I-10, I-80, and what not, back in the 80s.
"Prime agricultural land" is non sequitur - those lands are sold by acres.