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Sounds like there is a fair amount of Chert and Shale.:shrug:

I am planning a vacation in the Ouachita mountains of Arkansas. In my research the places I find are private or part of the National park. To find a place that you can legally pick a piece of...

Sounds like a fun trip/project/experiment.

The experience will be worth it even if any stones you find are not.

I found a layer of shale along the Mississippi around here that sounded like fun....