(2º19'05" N, 63º21'42" W), at 1047 m above sea level, was discovered in 1951 by a French-Venezuelan expedition that explored the upper Orinoco course to the Sierra Parima near the border with Brazil, headed by Venezuelan army officer Frank Risquez Iribarren.

In 1968, an expedition from The Geographical Journal set off from Manaus, Brazil aboard a SR.N6 hovercraft to follow the Rio Negro