Coastal MPA
Cañadón del Duraznillo
Associated Reserve

Cover Photo © Juliana Sanchez


This private reserve is integrated with the Provincial Monte Loayza Natural Reserve, acting as a buffer area. Its main ecosystem and anthropological value lies in the Duraznillo Canyon, a representation of the Patagonian steppe, and noted for its good state of conservation and by the presence of a rich archaeological site with records of the use of natural resources by the first human settlements in the area.

Geographic Location


Santa Cruz


– 47.08 Latitude S

– 66.29 Longitude W

Size and Limits

Total Area:


Marine Area:


Continental Area:


Surface area estimated based on the calculation of the area of the polygon represented on the map (ArcGIS PRO) with an Albers Conic Equivalent projection to preserve surface area calculations.

Other estimates: 13.4 km2 (Leaflet “Monte Loayza and Cañadón del Duraznillo”); 13.4 km2 (Zubimendi and Ambrústulo 2017. Archaeology 23(2) 99-124)

Legal Aspects


Private Reserve

Year of Creation


Creation Legislation

Private Reserve created by the agreement between Golfo San Jorge S.A. and the Fundación Hábitat y Desarrollo.

Eco-regions represented



Patagonian Steppe Ecoregion

Conservation Objectives

The Cañadón del Duraznillo Wildlife Refuge was created in 1992 by the Fundación Vida Silvestre Argentina.

This protected area is private, is located in the Golfo San Jorge and covers an area of 8521 hectareas. This protected area includes a type of vegetation unique in the Patagonian steppe, distinguished by the presence of Patagonian Retanilla and Cestrum Parqui. This wildlife reserve is adjacent to the Monte Loayza Area of Exclusive Scientific Use (Monte Loayza Provincial Reserve) (Padín 2007)

Colonies and stopover sites

The following table presents the colonies or stopover sites of some emblematic species of birds and marine mammals present within the MPA boundaries.


Year of Management Plan approval


Management effectiveness and evaluation year

Not evaluated.

Sources of information consulted:
Management Plan (2010)
Erize (2012)
Zubimendi and Ambrústolo (2017).

Bird and marine mammal colonies: see Bibliography.