This dissertation provides a description of the Chácobo language, a southern Pano language spoken by approximately 1200 people who live close to or on the Geneshuaya, Ivon, Benicito and Yata rivers in the northern Bolivian Amazon. The grammatical description emerges out of an ethnographically based documentation project of the language. Chapter 1 contains an overview of the cultural context in which the Chácobo language is embedded and a brief ethnohistory of the Chácobo people. I also discuss the general methodology of the dissertation touching specifically on issues related to data collection. Chapter 2 introduces the phonology of the language focusing on the categories necessary for its description. Chapter 3 provides a discussion of mor...