For a long time, it was thought that the river Oiapoque, in the north of Amapá, was the northern extreme of Brazil; today, it is known that mount Caburaí, in Roraima, is a little bit further to the north.
The state of Amapá is crossed by the Equatorial Line.
For a long time, it was thought that the river Oiapoque, in the north of Amapá, was the northern extreme of Brazil; today, it is known that mount Caburaí, in Roraima, is a little bit further to the north.