Angel Falls: the World's Highest Waterfall and the Lost World of the Tepuis

Rising from the ancient sandstone walls of Auyán-tepui in the remote wilderness of Venezuela's Bolívar State, Angel Falls plunges 979 meters in total — with a single uninterrupted free-fall drop of 807 meters — making it the highest waterfall on Earth by a margin that no other competitor comes close to matching. The water falls so far that much of it vaporizes into mist before reaching the canyon below, enveloping the base of the falls in a permanent cloud of vapor that can be seen from a great distance. To stand at the base of Angel Falls and look upward is to experience a kind of vertiginous awe that few human encounters with the natural world can replicate: the cliff face above seems to extend to the sky itself, and the falling water diminishes progressively into a white thread before disappearing into clouds and mist.

Angel Falls — known in Spanish as Salto Ángel and in the indigenous Pemón language as Kerepakupai Merú, meaning "waterfall of the deepest place" — descends from the summit plateau of Auyán-tepui, one of the largest and most spectacular of the tepuis, the extraordinary table mountains that define the landscape of southeastern Venezuela's Gran Sabana region. These tepuis are among the oldest geological formations on Earth, remnants of a Precambrian sandstone plateau that once extended across much of what is now South America and has been sculpted by billions of years of erosion into the dramatic mesas and vertical cliffs that now rise from the surrounding jungle like fortresses from another geological epoch.

The falls were known to the indigenous Pemón people for thousands of years before any outsider became aware of their existence. A Venezuelan explorer is credited with becoming the first non-indigenous person to observe the falls in the early twentieth century, though his discovery went largely unpublicized. It was the American aviator Jimmie Angel who, in the 1930s, first brought the falls to the attention of the wider world — first by sighting them from the air in 1933 and then by landing on the summit of Auyán-tepui in 1937, a landing from which he and his companions required eleven days to hike back to civilization. The falls now bear his name in the international consciousness, though the movement to restore their Pemón name has gained significant momentum in the twenty-first century.

Angel Falls is located within Canaima National Park, one of the largest national parks in the world at approximately 30,000 square kilometers, a UNESCO World Heritage Site since 1994 that encompasses not just Angel Falls but an entire landscape of astonishing geological and ecological complexity. To visit the falls is to enter one of the most remote and least altered natural environments on the planet, a place where the concept of deep time becomes tangible in the ancient stone of the tepui walls and where the biological communities that have evolved in isolation atop the tepuis represent some of the most unique life on Earth.

The Tepuis: Ancient Islands in the Sky

To understand Angel Falls, one must first understand the tepuis — the word comes from the language of the Pemón people and means approximately "house of the gods" or "home of the spirits." These extraordinary tabletop mountains are not mere geographical features but are among the most ancient and geologically significant landforms on Earth, formations that carry within their stone the record of processes that unfolded long before complex life evolved anywhere on the planet.

The tepuis of the Guiana Highlands are composed primarily of Precambrian sandstone, rock that formed roughly 1.7 billion years ago when sediments accumulated at the bottom of an ancient sea and were subsequently compressed and cemented into rock. The bedrock beneath the sandstone is even older — some of the granitic formations underlying the tepuis are approximately 3 billion years old, making them among the most ancient exposed rocks on Earth's surface.