Issus River: This is a northwestward flowing river, a tributary to the Vosk. It is more than one hundred pasangs from Torcodino which uses aqueducts to bring water from this river.
Kamba River: Kamba is an inland word, not Gorean, and means "rope." It flows directly into Thassa. It is a wide leisurely river located in the jungles near Schendi.
Lake Ias: This is located near Corycus.
Lake Ngao: Ngao is an inland word, not Gorean, and means "shield." It is larger than Lake Ushindi. It is a vast, deep, long, oval lake. It is fed by a major river called the Ua River. It is located in the jungles near Schendi.
Lake Shaba: This lake was unknown until discovered in Explorers of Gor. It is a large lake and the source of the Ua. It is named after the geographer who discovered it. There are the ruins of an ancient civilization on its shore.
Lake Ushindi: Ushindi is an inland word, not Gorean, and means "victory." This lake is drained by the Kamba and Nyoka rivers. To the west of Lake Ushindi are floodlands, marshes and bogs. It is located in the jungles near Schendi..
Laurius River: This is a winding, long, gentle, slow river. It flows in a generally westernly direction though it inclines some to the southwest emptying into Thassa at the free port of Lydius. Only common ships seen here are light galleys and barges. Above Laura, the river is less navigable, especially in the late summer.
Lower Fayeen River: This is a tributary of the Cartius, located west of Tor.
Nyoka River: Nyoka is an inland word, not Gorean, and means "serpent." Nyoka flows into Schendi harbor and thence to Thassa. It is a wide leisurely river.
Olni River: This is a tributary of the Vosk, located north of Tharna. The cities of the Salerian Confederation are located on this river..
Tamber Gulf: The Vosk River empties here into Thassa. Port Kar is located in this gulf.
Thassa Cartius River: This river is a tributary of the Vosk. It drains the Ven highlands and has its own tributaries.
Ua River: Ua is an inland word, not Gorean, and means "flower." It is a major river, at least as big as the Vosk. There are many cataracts on the Ua which make it very difficult to cross. Its source is Lake Shaba.
Upper Fayeen River: This is a tributary of the Cartius..
Verl River: This is a tributary of the Vosk that flows northwestward into the Vosk.
Vosk delta: The delta is a treacherous are and difficult to navigate. Its channels change almost overnight and is often little more than a trackless marsh. There is little visibility due to the rence plants. Its sluggish, muddy waters vary from a few inches deep to deep enough for a ship. The average depth, after the spring thaws upriver, is three to five feet. It is teeming with wildlife. The eastern portion has fresh water. The delta is claimed by Port Kar which lies some hundred pasangs from its northwest edge, bordering on the shallow Tamber Gulf. The delta is at least over four to five hundred pasangs long. Ships from Thassa cannot pass through the delta to the Vosk River due to the delta's almost impassibility..
Vosk River: This is a mighty river, some forty pasangs in width, that passes by Ar and pours into the Tamber Gulf. The Vosk is below Ko-ro-ba and north of Ar. Most towns on the river are free states and belong to the Vosk League. River ships of Ar and Cos battle here for influence over the river and its towns. The southern bank is much less populous than the northern bank..