In all, the train passes through fifty tunnels and over eighty bridges. On the way to Alishan the train passes through four different forest zones.
海拔八百公尺到二千公尺是常綠闊葉暖帶林，包括：櫧、樟、柯、楠、烏心石等，這段路程中有個大站﹘﹘奮起湖，林務局在這附近栽培了不少杉木。