Cubeo is a Tucanoan language spoken by about 6,300 people mainly in Colombia. Cubeo speakers can be found in the Vaupés department along the Vaupés, Cuduyarí and Querarí rivers and their tributaries in Colombia, and also in Brazil and Venezuela.
There are three dialects of Cubeo which differ mainly in the pronunciation of some vowels, and also in some vocabulary.
Information about Cubeo
Gramática del Cubeo (PDF)