PROGRAMA DE BÚSQUEDA SISTEMÁTICA DE EVIDENCIAS TEMPRANAS Y HALLAZGO DE UNA PUNTA DE PROYECTIL TIPO COLA DE PESCADO EN ALTO RÍO ÑIREHUAO

We present the finding of a "fishtail" type projectile point as result of a search program targeted to identify late Pleistocene glacial geoforms in the area of upper Nirehuao (similar to 45 degrees 20'S, Aisen , Chile). Framed within this program we carried out surface surveys by identifying the margins of a proglacial paleo-lake through air-photograph analysis. One of the most remarkable findings was obtained in the area of Pampa Coichel (BN 22), where the isolated lithic projectile point was recorded at an open-air location. This result is discussed in the frame of local, regional and supraregional information. Finally, we explore the potential of developing a program aimed to model old landscapes by isolating geomorphological variables in order to guide the search of early evidence.