Talk:Columbus Limestone

External links modified
Hello fellow Wikipedians,

I have just modified one external link on Columbus Limestone. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20110606192515/http://www.ohiodnr.com/portals/11/publications/pdf/geof25.pdf to http://www.ohiodnr.com/portals/11/publications/pdf/geof25.pdf

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

Cheers.— InternetArchiveBot  (Report bug) 02:16, 11 August 2017 (UTC)