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Historical Markers in Harmon County, Oklahoma
Hollis is the county seat for Harmon County
Adjacent to Harmon County, Oklahoma
Beckham County (19) ► Greer County (2) ► Jackson County (3) ► Childress County, Texas (9) ► Collingsworth County, Texas (15) ► Hardeman County, Texas (15) ►
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| On U.S. 62, on the right when traveling east. |
| On Oklahoma Route 30 south of E1530 Road, on the right when traveling north. |
Jun. 15, 2024