Railway above a Copper-Colored Canyon

Railway above a Copper-Colored Canyon is an original illustration set in Copper Canyon, Mexico. It lies in the subtropics, where the climate is cold semi-arid steppe.

A silver-and-green passenger train clings to a narrow ledge high above a maze of rust-red ravines. Stepped volcanic walls recede through warm haze, and dry pine-oak woodland occupies shelves and cooler upper slopes while the canyon floor disappears far below. The rails curve with the cliff, emphasizing how little level ground exists in the deeply cut Sierra Madre landscape.

Why does the track loop and curve instead of running straight?

The track follows ledges and repeated curves because the railway must lose and regain height across a dissected volcanic plateau without exceeding workable gradients. Building outward from the canyon wall requires less excavation than cutting a straight route through successive ridges, which is why the train seems suspended above the ravines. Pine and oak survive on the cooler uplands while warmer, drier vegetation occupies lower exposures. This vertical ecological change combined with red volcanic canyon walls is characteristic of Mexico's Copper Canyon.

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