> Fortunately, an even better location for a barrier existed: the Darien Gap, on the border of Colombia and Panama. At this narrow stretch of land, the barrier would need to be just 60 miles wide.
btw this is that terrifying jungle zone of Panama from the TV show Pluribus. Yes, it is real, and so are those trees.
- https://en.wikipedia.org/wiki/Darién_Gap - https://davesgarden.com/guides/articles/view/2904