Sima Martel (Sima Menor) is an enormous sinkhole located on the summit of plateau of Sarisariñamatepui, in Bolívar State, Venezuela. It is unusual due to several factors including its enormous size and depth, location on the top of the only forested tepui and having a patch of forest on its base. It is named after the speleologistÉdouard-Alfred Martel.
^(In Spanish) Miguel Lentino, Diana Esclasans. "Important Areas for the Conservation of Birds in Venezuela". In: Birdlife and Conservation International. Important Areas for the Conservation of Birds in the Tropical Andes: Priority Sites for the Maintenance of Biodiversity. ("Áreas Importantes Para La Conservación De Las Aves En Venezuela". In: BirdLife International y Conservation International. Áreas Importantes para la Conservación de las Aves en los Andes Tropicales: sitios prioritarios para la conservación de la biodiversidad.) Quito, Ecuador: BirdLife International (Serie de Conservación de BirdLife No. 14), S. 621-730, 2005.
1 List sourced from volume 1 of Flora of the Venezuelan Guayana; includes landforms that may not strictly conform to the definition of a tepui or table mountain. 2 Poorly known sites or lower mountains treated as tepuis for historical reasons.
