This is actually another picture that I took from my recent family vacation in Peru a few months ago. And what's interesting about the ancient civilizations there is some of them might have settled on the coast to take advantage of the fishing that was available. There were some rivers, or there continue to be some rivers that go from the mountains through the desert. So some early agriculture developed around that. But there's also civilizations that developed around these high altitude valleys. And what's really interesting about these civilizations is because of the terrain, they weren't as unified as things that we might see in Mesoamerica. So one of the first civilizations in all of the Americas that we have archeological evidence of is the Corral or Norte Chico civilization.