Indigirka River
From Memory Alpha, the free Star Trek reference
The Indigirka River was a major river of the eastern Union of Soviet Socialist Republics. It was located between the Kolyma River on the east and the Yana River on the west. (TOS: "The Cage")
This river was identified on a political map of the North Pacific region. This map was accessed from the USS Enterprise library computer by the Talosians in 2254.
