Miscellaneous References and MentionsWhile our initial information about Big Rock came from various goverment sources (GNIS, FIPS), we also found mention of Big Rock in various books, maps and other sources. We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Big Rock. We hope that they will be useful to you. Note: When we started collecting data about Big Rock, 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 Big Rock: Iowa State Gazetteers
List of Post Offices in the United States (1870)
SPV's Comprehensive Railroad Atlas of North America - Prairies East & Ozarks
Rand McNally Map of Iowa (1911)
Big Rock 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 Big Rock. See our Misc Page for Big Rock for more information. Footnotes ...
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