There are still very unknown mountains, like Marahuaca, which is almost 3,000 meters high above sea level, or Aracà, which is in the upper region of Rio Negro in Brazil.
Masih banyak pegunungan tak diketahui, seperti Marahuaca, yang tingginya hampir 3.000 meter di atas permukaan laut, atau Aracà, yang ada di daerah atas Rio Negro di Brazilia.