Miscellaneous References and Mentions

While our initial information about Opportunity came from various goverment sources (GNIS, FIPS), we also found mention of Opportunity 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 Opportunity. We hope that they will be useful to you.

Note: Initially, we were careless about keeping track of where our Opportunity data came from. The following list of references and mentions is incomplete.

Mobile Oil Map of Washington (1949)
Published by Mobile Oil Company

Opportunity 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 Opportunity. See our Misc Page for Opportunity for more information.