Long and narrow rocky underpass

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The tunnel is an artificial passage built through a limestone mountain.

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Size: 3754px × 5623px
Location: Foz de Lumbier, Navarra, España
Photo credit: © Oksana Mitiukhina / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: arch, artificial, diminishing, gap, hole, limestone, long, narrow, natural, passage, perspective, stone, subway, tunnel, underground, underpass, vault