The newly mapped complexes display “nested” arrangements of low platforms.
The soldiers were kidnapped on August 25 after clashes in a rural part of the El Retorno municipality left 11 guerrillas dead, including a commander of a dissident faction of the former FARC rebels.
A collective work titled "Archaeology of the Amazon" offers a broad overview of traces left by thirteen millennia of human occupation over a territory larger than that of the European Union.