Sarisarinama Expedition's 2004 and 2005

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Cerro Sarisariñama is a tepui, a flat-topped mountain in Jaua-Sarisariñama National Park at the far south-west of Bolívar State, Venezuela, near the border with Brazil. Its altitude range is between 300 m (980 ft) and 2,350 m (7,710 ft). The name of the mountain originates from the tale of local Ye'kuana Indians about an evil spirit living in caves up in the mountain and devouring human flesh with a sound "Sari... sari...".

The most distinctive features of this tepui are its sinkholes. Reports first began to circulate about them in 1954 after pilots began flying over the tepui. There are four known sinkholes. Two, Sima Humboldt and Sima Martel, are visually unusual, huge, and well known, with isolated forest ecosystems covering their bottoms. The largest one, Sima Humboldt, is up to 352 m (1,155 ft) wide and 314 m (1,030 ft) deep. Another Sarisariñama sinkhole, the 1.35 km (0.84 mi) long Sima de la Lluvia, has been very important for exploration of the processes of erosion on tepuis.