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.
The mountain range begins at the Baudó River from the south and stretches northward slightly west along the coast into Panama, ending at Golfo de San Miguel. In Panama, this region is known as Serranía del Sapo.