| LC control no. | n 81096309 |
|---|---|
| Descriptive conventions | rda |
| Geographic heading | Mason County (Ill.) |
| Geographic subdivision usage | Illinois--Mason County |
| Variant(s) | Mason Co., Ill. |
| Found in | GeoNames, Jan. 26, 2015 (adm2; N 40° 14' 22'' W 89° 55' 0''; also ppl named Mason in Effingham County, IL; civil township named Mason in Effingham County, IL) Wikipedia, Jan. 26, 2015 (Mason County is a county located in the U.S. state of Illinois) <https://en.wikipedia.org/wiki/Mason_County,_Illinois> |
| Geographic area code | n-us-il |
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