The
Baudó Mountains (
Serranía de Baudó) are a coastal
mountain range on the
Pacific coast of
Colombia. They are separated from the
Cordillera Occidental by the Atrato valley where the
Atrato River flows and
Quibdó is located. From the south the range extends from the Baudó River north and slightly west along the coast into
Panama terminating at the Golfo de San Miguel. The range is called
Serranía del Sapo when it is in Panama. Technically the landform extends south of the Baudó River down to Bahia de Buenaventura (where Malaga Bay is located), but the area has been eroded into low hills and marshlands.
From Cabo Corrientes north to Punta Ardita and on into Panama the Baudó Mountains meet the ocean in steep cliffs, rising up to as high as 230 feet, with small indentations in the coast providing small pocket beaches, some sandy, but most are shingle or cobble.
However, near river mouths the coast has been eroded and there are wide sandy beaches, tidal flats and even mangrove swamps.
Geology
Geologically, the Baudó Mountains represent an extension of the
Isthmus of Panama. They were originally formed in the
late Cretaceous and
Paleocene from
oceanic volcanics that were compacted as the
Nazca Plate pushed westward into and under the
South American Plate. The area is still tectonically active with the Nazca plate estimated to move eastward at the rate of 3.7 cm per year.
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