The official flag of Mercer County, West Virginia. The flag was Adopted on June 12, 2015.
https://www.ptonline.net/gallery/pride-and-preservation-mercer-county-flag-unveiled/article_ca94682c-110a-11e5-b38a-ff2a107d2a9e.html
Mercer County, West Virginia (Original) Digitalized and Vectorized Flag of by TheVexillologistofKingwood