Pehuenches DepartmentPehuenches is a department located in the northeast of Neuquén Province, Argentina.GeographyThe department limits at north with Mendoza province, at northeast with La Pampa Province and at east with Rio Negro Province, Añelo Department at south, Loncopué Department at South-SouthWest, Picún Leufú Department in the southwest, Minas Department in the northwest.PopulationAccording to the 2022 Argentine National Census, Pehuenches had a total population of 29,753 people and population density of 3.6 people per square kilometer.