Oklahoma Historical Markers

See category Oklahoma Historical Markers on Waymarking.com .
Last import of category containing 755 waymarks in 1 different countries with 1 regions was on 2024-03-22.

First in
country
CountryRegionOwnerApproved onWM-CodeTitle
starsUnited StatesOklahomaBruceS2008-10-09WM4XB9State's Earliest Oil Refinery