Catalysed by Stan Hall and being one of the largest cave expeditions of its time, the 1976 expedition involved over 100 people including Ecuadorean and British government officials, joint special forces, and top scientists and speleologists of the time alongside astronaut Neil Armstrong who took the role of Honorary President of the expedition. A team of experienced cavers were employed in mapping the extensive network of passages and chambers and various zoological, botanical and archaeological findings were recorded. Of Von Däniken’s gold library no evidence was discovered.

With a scientific framework installed, Stan Hall later turned to Erich von Däniken's report of a metal library allegedly found in the caves by Juan Moricz in the mid-1960s, something unacceptable within an orthodox view of global history and absence of any ancient script in South America.

The British-Ecuadorian Tayos Caves expedition of 1976 was essentially a scientific extension of the 'Moricz Expedition 1969' and the 'Moricz-Hall Stones Expedition' of 1975. Below are photographs of some of the locations and participants.