Lost Tiwanaku temple unearthed in Bolivia reveals ancient Andes trade and ritual network
Lost Tiwanaku temple unearthed in Bolivia reveals ancient Andes trade and ritual network

archaeologymag.com
Lost Tiwanaku temple unearthed in Bolivia reveals ancient Andes trade and ritual network

Isn't that pretty much established already though? I mean, the 600~1000 CE boil down to Tiahuanaco and Huari splitting the Andes, with both being powerful enough to discourage an invasion from each other. And it's well-established that the Huari had fairly decent peripheral infra-structure, so odds are Tiahuanaco was the same in this aspect.