The Longest View in the World: The Farthest You Can See on Earth’s Surface

Looking south from the roughly 20,000-foot (6,000 m) Pik Dankova in Kyrgyzstan (near the China border), it is possible to see deep into China’s Kunlun Mountains with many peaks over 300 miles (483 km) away. This is made possible by a broad low-lying desert plain separating two very high mountain ranges at just the right distance.

As pointed out by jbramel, what is even more astonishing is that there is a 21,000-foot (6400 m) peak called the Hindu Tagh visible at an incredible 334 miles (538 km)! This is visible (also according to this panorama tool) looking in a direction 169.7 degrees south from Pik Dankova and just might be the longest line of sight possible on the surface of the earth.

This has never been proven by photograph though, so… any intrepid climbers want to lug a camera and telescope up there? The longest photographed line of sight in the world spans 275 miles (443 km), extending from Pic de Finestrelles in the Spanish Pyrenees to Pic Gaspard in the French Alps, which is nearly a hundred times farther than what can be observed when driving across the plains and gazing at the horizon.

Here’s a map view of the same distance.

And here’s an amazing animation of traveling the same distance at 32 times the speed of sound (total distance of 275 miles or 43 km, from Pic de Finestrelles in the Spanish Pyrenees to Pic Gaspard in the French Alps).

Mark Bret has a website called Beyond Horizon where he lists all the possible longest lines of sight.

Looking at these remarkable locations of the world’s longest sightlines, one is reminded of the limitless horizons that still await our exploration on this planet.

Sources: 1, 2, 3