More than 20 years ago, Dr. Heiko Prümers of the German Archaeological Institute and Professor Dr. Carla Jaimes Betancourt of the University of Bonn, then a student in La Paz, began archaeological excavations on two “mounds” near the village of Casarabe in Bolivia. The Llanos de Mojos are a southwestern strip of the Amazon region. Although the savannah plain, flooded several months a year during the rainy season, does not favor permanent settlement, there are still many visual lines from the time before the Spanish colonization in the early sixteenth century. Next to the “mounds,” those lines basically come with sidewalks and canals that lead for miles on a direct line through the savannas.