The Oral Corpus of the Atlas Lingüístico-Etnográfico de Colombia (ALEC) is composed of 650 hours of recordings collected during research conducted in Colombia between 1956 and 1983. This corpus includes 45 speaking sample audio files collected in the Amazonian region (departments of Putumayo, Caquetá, Amazonas). These sound files are a representative sample of the Spanish spoken in the region. The Corpus Linguistics and Computational Research Group (grupo de Lingüística de corpus y computacional, LICC) of the Instituto Caro y Cuervo has worked on the systematization of these files using both structural and descriptive metadata. The goal is to make available linguistic conservation material to the academic community, with information that can be exploited for diverse quantitative and/or qualitative analyses from different language levels (phonetic-phonological, morphosyntactic, lexical-semantic, and pragmatic.).