Taiwan is 394 km long and 144 km wide, and mountains take the eastern two-thirds of it — more than two hundred peaks above 3,000 m, the highest of them Yushan at 3,952 m. The 23,299,132 people counted in December 2025 are pressed into the western third, which is where the railway runs and where every city a visitor is likely to open sits: Taipei with New Taipei and Keelung at the north end, then Taichung, Tainan and Kaohsiung down the plain. The east coast is the other trip entirely, reached by crossing the ranges rather than skirting them.
Checked 2026-08-25