Research continues (440 geoglyphs), especially as more areas have high resolution imagery for the first time. To the south in Amazonian Bolivia, an area rich in visible, ancient anthropogenic earthworks, this particular field line area caught my attention as a unique human land formation. Are these remains of ancient canals and raised beds? For lack of a proper name, I reference a local place name, Curichi Estabi. The town of San Borja, Beni is nearby. To the ESE, I'm now placemarking the Llanos de Moxos cultural expression with monumental mounds and extensive canals. I'm also researching the zanjas (the local term for ring ditch geoglyphs) to the NE around Baures.
I highlighted the major lines. Zoom in in Google Earth to see what I assume are raised beds for agriculture between the large canals for transport and drainage. Let me know if you have further data on this location. I'm reading Bolivian Amazon archaeology literature now, will update if I find more about this site. What's under the trees? Are the elevated areas also made by humans?