The 66-Mile Hole in the Pan-American Highway
The longest road on Earth has one missing stretch. Cattle disease, not jungle, is why it's still missing.
From Prudhoe Bay, Alaska, to Ushuaia, Argentina, you can drive about 30,000 kilometers on a single named road. Except for 66 miles in Panama. The Pan-American Highway pauses at the town of Yaviza, jumps a stretch of rainforest and swamp called the Darien Gap, and resumes at Turbo on the Colombian side.
The usual story is that the jungle is too dense to build through. The actual reason the road never closed is a virus. Foot-and-mouth disease, which devastates cattle and sheep, was last seen in Central or North America in 1954. South America still has periodic outbreaks. The Darien rainforest, with no road and no meaningful livestock traffic, functions as a quarantine wall. In 1978, after pressure from the U.S. cattle industry, an American court blocked Department of Agriculture support for any road through the Gap on exactly those grounds.
The biology argument got reinforced by a sovereignty one. About 8,000 people across five Indigenous groups, including the Embera-Wounaan and the Guna, live in the region and have consistently opposed a highway through their territory. A 1994 UN report estimated the road would cause severe deforestation. The political coalition holding the gap open is wider than it looks.
People have driven across, just barely. The 1960 Trans-Darien Expedition, two Australians in a Land Rover and a Willys Jeep, left Chepo, Panama on February 2 and reached Quibdo, Colombia on June 17. That is 136 days to cover the gap, an average pace of 220 yards per hour. They had to winch the vehicles over rivers. Nobody has seriously proposed paving it since.
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