Countless, almost perfectly round, forested islands dot the remote, watery plain of the Beni in eastern Bolivia. A millennium ago the islands were linked by causeways, parts of an intricate landscape management system tended by thousands of highly organized workers. These mounds do not have their origins in geo-morphological forces, but originate instead in human logic, in anthro-morphology. For even simple excavation reveals that they are built from broken pottery. Each pile, and there are hundreds, is larger than Monte Testaccio, a hill of broken pots southeast of classical Rome, serving as a garbage dump for the imperial city. Simply extending from the volume of ceramics piled on the Beni suggests that the plain was home to a highly structured society. Beginning three thousand years ago, an Arawak-speaking people created a civilization that, at its height, was populated by a million people walking the causeways wearing “long cotton tunics, [with] heavy ornaments dangling from their waists and necks” (12). The Beni was one of humankind’s greatest works of landscape artistry. Yet it was unknown until recently even by its contemporary inhabitants, the Siriono. For the builders of the mounds and the caretakers of the dikes disappeared just before the Spanish invaders arrived. Its discovery awaited Bill Deneven, a geography graduate student at the University of California, Berkeley, who flew over the area in 1961 and was astonished to see great regularities in the landscape that could only be human in origin | more…