Baudó Mountains

…have developed that constitute the Baudo, or Coastal, Mountains and the Cordillera Occidental. They were accreted during Cretaceous and early Cenozoic times. Structurally composed of oceanic volcanic arcs that were amalgamated after each collision by high-angle, west-verging thrusts, the Northern Andes are characterized by the heavily deformed metamorphic rocks and…

…the Pacific coast is the Baudó Mountains, separated from the Cordillera Occidental by the valley of the Atrato River, which empties into the Caribbean Gulf of Urabá; the Baudó Mountains represent a southward extension of the Isthmus of Panama.