I wonder why the commenter discounts the idea that they were used to store things. Especially since the article gives evidence that things were stored in the holes:

"Hole soil analysis also found ancient pollens of maize – a key staple in the Andes – and reeds traditionally used for basket-making. In addition to this, there were traces of squash, amaranth, cotton, chili peppers and other crops that haven't been farmed on the arid land where Monte Sierpe sits. Because many of these plants produce little airborne pollen, it's unlikely they settled in the holes naturally."

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jasonwatkinspdx 3 hours ago | parent | next [-]

Yeah, they're just assuming that if you wanted to store something you'd store it at the bottom of the hill.

While I'm no archeologist/anthropologist, I have seen an ancient grainery near the green river in Utah. It was about an hour long very steep half hike half rock scramble to get up to the ledge where it was at.

So maybe ancient people had reasons to put storage sites in more difficult to access locations.

	▲	throwup238 an hour ago \| parent [-]
		It’s actually pretty common to store food at higher elevations in the historical and archaeological record, including among the Incas (but mostly in qollqas). More wind at higher elevations means less moisture, which is the biggest factor in preservation. There are plenty of examples from every era, stretching from ancient Minoans to 20th century Berbers.

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rdtsc 3 hours ago | parent | prev | next [-]

> Especially since the article gives evidence that things were stored in the holes

They explain it as these holes are at the top of the mountain. Why climb the large mountain to store your grain there just to have haul it back down later? My own guess answers: safer from animals, precipitation, safe from enemies.

Storing in general could mean different things: putting baskets with grain and produce there for a minute and them someone else immediately pick it up in some bartering exchange, it's not really storing then, I guess? Or, even religious offerings can also be explained as "storing" -- they are stored in there until the "gods" (i.e. elements) destroy them (i.e. consume them) and the gods are appeased, that way ensuring good harvests and other benefits.

	▲	jcims an hour ago \| parent \| next [-]
		>Why climb the large mountain to store your grain there just to have haul it back down later? Yes and after going on a trip to Machu Picchu a few years ago, the locals don't seem to feel gravity quite the same way most of us do these days. There was a gal on our 4 day hike that got hit pretty hard with altitude sickness a day in. A local porter about her size carried her on his shoulders for the rest of the trip, in flip flops, and the only reason he stayed back with our slow asses was so she could talk to her husband along the way. It's the most visceral experience I've had in the levels upon levels of human capability. Really wild to see in person. Also Peru is phenomenal.
	▲	conductr 3 hours ago \| parent \| prev [-]
		Could also be a form of refrigeration if crops were grown in the valley but benefited by cooler temp storage at higher altitudes Likewise it could have been snow/ice farming to have it available into the summer. Not sure what the weather was like here that long ago but it’s another angle to explore.

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deathanatos an hour ago | parent | prev | next [-]

Why wouldn't you spread out, though, instead of working in basically a line? (At least, as much as topography reasonably allows.) That way, your travel distance to any particular item increases at like sqrt(stuff), instead of just linearly.

	▲	fusslo an hour ago \| parent [-]
		yeah, I've been thinking about that since I read the article! I'm wondering if the line goes along the crest of the hill, so it's basically as wide as the crest is. But there's still, why 7-8 holes wide, and why are there some groups... lots of questions to think about!

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MisterTea 2 hours ago | parent | prev [-]

My first explanation would be offerings. The rarity of those crops in the area would mean they were more valuable and therefor likely to be used as offerings.

edit: Or heck, maybe they wanted to keep it away from wildlife or invaders.