Miscellaneous References and MentionsWhile our initial information about Natural Tunnel came from various goverment sources (GNIS, FIPS), we also found mention of Natural Tunnel in various books and other sources. We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Natural Tunnel. We hope that they will be useful to you. Note: When we started collecting data about Natural Tunnel, we were inconsistent about keeping track of where that data came from. As a result, this list of references and mentions is probably incomplete. Business Atlas and Shippers' Guide (1895)
A note taken from the Shipper's Guide for Natural Tunnel: SPV's Comprehensive Railroad Atlas of North America - Appalachia & Piedmont
Natural Tunnel is contained in a comprehensive list of Post Offices that was created by Cameron Blevins and Richard Helbock.<1> Both the GNIS and FIPS databases contain entries for Natural Tunnel. See our Misc Page for Natural Tunnel for more information. Footnotes ...
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