Oklahoma Historical Markers
See category Oklahoma Historical Markers on Waymarking.com .
Last import of category containing 757 waymarks in 1 different countries with 1 regions was on 2024-03-22.
| Land / Region | #Posted | Title of first posted waymark | Code | Owner | Approval |
|---|---|---|---|---|---|
| United States / Oklahoma | 757 | State's Earliest Oil Refinery | WM4XB9 | BruceS | 2008-10-09 |