<page_title> List of the largest counties in the United States by area </page_title> <section_title> List of largest counties </section_title> <table> <cell> 10 <col_header> Rank </col_header> </cell> <cell> Harney County <col_header> County </col_header> </cell> <cell> Oregon <col_header> State </col_header> </cell> </table>
Harney County is the largest county by area in Oregon and the tenth-largest county in the United States.