Ok, here is a section at the top of the postpile. The posts themselves where created because the pool of basalt was able to cool uniformly and this section was ground smooth because of glaciers.
Once coming down from the top one can see stubs of piles that have been deformed. These are past the main section of posts.
Now we get into the iconic pictures of the postpiles themselves. In the foreground you will see broken posts, these are the ones that have fallen due to weathering or man. And yes this area may not have been here since a construction company had bought the land and wanted to use the postpiles for fill for a dam. (Also you will see on one of the plagues at the start of the postpile of guys pulling a post down.)
This is a closeup of some of the rubble.
Rocks that bend. Or that where bent.
The next three are more of the iconic pictures. Overall rather impressive in the formation and structure.
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