It's buttoned together with posts, as if someone had built it, and--what's more--these are described as 666 posts.

柱子插在田野中，就像是被人建造的似的，而且，根据描述,一共有666根。

耶鲁公开课 - 1945年后的美国小说课程节选

After a while, there were stretches where red gullies dropped off on either side of the road, and behind them there were patches of field buttoned together with 666 posts.

过了一会，有几段路,红色的排水沟在道路两旁延伸，后面是一块块的田地,一共有666根插在上面。

耶鲁公开课 - 1945年后的美国小说课程节选