This layer is a georeferenced raster image of a portion of a scanned nautical chart showing approaches to Rada el Algarrobo. This map is part of a nautical chart titled "South America--West Coast, Plans on the Coast of Chile" originally published by the United States Defense Mapping Agency in 1975. This layer is 1 of 11 parts representing the original source sheet map. Components of: Rada El Algarrobo, Rada Buchupureo, Caleta Tuman and Rada Topocalma, Puerto Yana, Caleta Matanza, Rada Llico, Rio Rapel, Puerto Constitucion, Rada Curanipe, Rada Pelluhue, Puerto Pichilemu. Map No. 22295.Historic paper maps can provide an excellent view of the changes that have occurred in the cultural and physical landscape. The wide range of information provided on these maps make them useful in the study of historic geography, and urban and rural land use change. As this map has been georeferenced, it can be used in a GIS as a source or background layer in conjunction with other GIS data.