Most of the rivers that flow north from the Caucasus Mountains and intoTerek–Kuma Lowland are caught by theKuban andTerek. It rises between the basins of those two rivers, so the Kuma is mainly a steppe river. It is much used for irrigation.
If the plans for the proposedEurasia Canal, linking the Caspian Sea with the Black Sea, are ever implemented, it will likely follow the Kuma River valley in its eastern section.