The Atrato River in Colombia was considered as a location for a trans-isthmian canal, before the eventual construction of the Panama Canal.
This resolves YES if, at any time between now and the close date, there is a canal from the Pacific to the Atrato river.
A canal is any artificial waterway navigable by a boat of any size. The canal will have to connect the Pacific to any part of the river as highlighted in the image.
1,000i would assume for this to resolve YES the canal would have to be navigable by a proper ship and not just a ditch one can row a canoe through? Also would it have to be a seperate canal directly to the pacific or would a canal from the Rio Atrato to a sufficiently navigable part of the San Juan river be enough to resolve YES?
@sarius I think it's easier to resolve if I consider a canal to be any artificial waterway navigable by a boat of any size. The canal will have to connect the Pacific to any part of the river as highlighted in the image.