The Maned Wolf inhabits the grasslands and scrub forest of central South America from the mouth of the Parnaiba River in north-eastern Brazil, south through the Chaco of Paraguay into Rio Grande do Sul State, Brazil, and west to the Pampas del Heath in Peru (Dietz 1985). Beccaceci (1992) found evidence of Maned Wolves in Argentina as far south as the 30th parallel, and a sighting in the province of Santiago del Estero was recently reported (Richard et al. 1999). They probably range into northern Uruguay. Their presence in this country was confirmed through a specimen trapped in 1990 (Mones and Olazarri 1990), but there have not been any reports of sightings since that date (S. Gonzalez pers. comm.).