Analysis of information sources in references of the Wikipedia article "Atrato River" in English language version.
While it is not impossible that a practicable line on which to construct a canal can be found with its terminus in the Atrato Valley, the necessary length of the line, together with the difficulties which would attend a terminus at the mouth of a large silt-bearing river, are enough to show that in use it would be inferior to either the Panama or the Nicaragua location.
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