The Chuanwai Xiaotielu (川外小铁路), originally a 9-kilometer industrial railway for the Chongqing Special Steel Factory, has been transformed into a scenic urban trail. Preserving its historical tracks and tunnels, it now serves as a cultural landmark, reflecting Chongqing's industrial heritage and community memories. The trail offers a unique blend of history and leisure, attracting visitors seeking both nostalgia and urban charm.
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