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Iowa rock sources

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paulc:
Morning All, a geologist sent this link to me.  http://www.rollinghillsconsulting.com/county-chert-maps/?fbclid=IwAR0lrzApHFfpRcz9HuBZZ9CEi4ZPcORhXHLLgeWyAN_jGAkASPXDBRLUARU 

Let me know if you use the resource and find any rock worth knapping.

Thanks Paul

1442:
that's like a treasure map
I'd sure like to go try it out

paulc:
Yeah, I have found something similar for here in GA that I have only tried out once...can't wait to get out and look with effort.  And of course now next time I visit my folks I'm borrowing the car for a day...P

paulc:
I got to spend a weekend with family in IA and took some time to use the map above to go looking for stone.  Didn't find a ton but definitely some knappable stuff...So far it is not the quality of stuff that I buy online but then collecting it myself if more interesting than buying online.  No big pieces but I might get a hunting point or two out of this.  The pics is a small bit of the gravel I picked out of a culvert where creek went under a road between corn fields.  The map above is worth some time checking out if you have a day to burn.  Do some checking on private property/trespassing if you want to really play by the rules. 

Paul

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