Map of the Region of the Iténez or Guaporé River and Its Tributaries


This pen-and-ink watercolor map shows the Iténez-Guaporé River Basin. The map shows the location of the fortress of Nossa Senhora da Conceição dos Portugueses and the deployment of Spanish troops under command of Alonso Berdugo and Aymerich Tete. This river, now known in Brazil as the Guaporé, forms the border between the Brazilian provinces of Rondônia and Mato Grosso, before flowing north into Bolivia, where it is known as the Iténez.

Date Created

Subject Date


Title in Original Language

Plano da região do Rio Itenes ou Guaporé e seus afluentes

Type of Item

Physical Description

1 pen-and-ink and watercolor manuscript map ; 33 x 47.5 centimeters

Last updated: January 8, 2018