40 years after its discovery, “Ecuadorian Machu Picchu” is threatened by erosion. Discovered in 1978 in the Upano Valley, in the Ecuadorian Amazon, this “ lost city ” extends over hundreds of square kilometers.
As part of this project launched in 2015, some 7,400 mounds of earth were identified using laser technology used from an airplane to scan the soil. In the shape of L, T, U, or even square, rectangle and oval, these mounds served as the foundation of the houses - of which nothing remains.