> I don't think a few years is enough to erase all trace of human intervention
The weather there is quite brutal. Roads need tons of maintenance to remain passable. This is one of the reasons rivers are such an important transportation network.
> Amazonian landscape management is so radically different from what Europeans know that they likely just didn't realize what was before their eyes
This is an interesting explanation. Also, refusing to document previous occupation is a convenient way to claim land rights.
The weather there is quite brutal. Roads need tons of maintenance to remain passable. This is one of the reasons rivers are such an important transportation network.
> Amazonian landscape management is so radically different from what Europeans know that they likely just didn't realize what was before their eyes
This is an interesting explanation. Also, refusing to document previous occupation is a convenient way to claim land rights.