[5] located within the zone of parallel, north-northeast trending hills that lies between the low-point Magdalena and the Gulf of Urabá in Northwestern Colombia.

To the north it transitions into patches of the Guajira–Barranquilla xeric scrub ecoregion, and into a section of Amazon–Orinoco–Southern Caribbean mangroves along the coast.

[1] At a sample location at coordinates 10°15′N 74°15′W / 10.25°N 74.25°W / 10.25; -74.25 the Köppen climate classification is "Tropical wet and dry or savanna (Aw)".

[6] The ecoregion is in the neotropical realm, in the tropical and subtropical dry broadleaf forests biome.

[5] Endangered mammals include black-headed spider monkey (Ateles fusciceps), Geoffroy's spider monkey (Ateles geoffroyi) and red-crested tree-rat (Santamartamys rufodorsalis).