This species is found in the Atrato and San Juan drainages of Colombia.
Atrato River | Atrato | Atrato river |
Collectively they are known as the Chocó and belong to two major groups: the Embirá, of upper Atrato and San Juan Rivers, and the Wuanana of the lower San Juan River.
The eastern frontier of Tierra Firme also included the east side of the Gulf of Darién or Urabá, the east side of the Atrato and Truando rivers, ending in Cabo Marzo on the Pacific side.