12 Mile Spiral
The Caracol [Span.,=snail], a 12-mi (19-km) spiral canal fed in turn by longitudinal canals begun in 1936, acts as an evaporating basin, from which...
The Caracol [Span.,=snail], a 12-mi (19-km) spiral canal fed in turn by longitudinal canals begun in 1936, acts as an evaporating basin, from which...
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