|Chasma (canyon or linear depression)
|V-23 Niobe Planitia
|11°-13° S, 95°-104° E
|Length: 890 km
|Ovda Regio, Ralk-umgu Chasma, Tahmina Planitia
|A long linear depression that forms the western end of a network of chasms on Venus. At its eastern end, it runs into the Ralk-umgu Chasma, which in turn connects to the long Vir-ava Chasma, with lesser chasms running perpendicularly from the main channel. Kuanja Chasma runs southward from the highlands of Ovda Regio, at the western end of the major Venusian 'continent' of Aphrodite Terra.