The route is signed as a north–south highway though it runs northwest–southeast between Matamoras and East Union.[2] No part of the route is a part of the National Highway System.[3]
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History
SR 260 was first assigned around 1926 on its present alignment between SR 145 in Road Fork to SR 78 near East Union, entirely in Noble County.[4][5]SR 245 was signed on the present SR 260 route between Matamoras and Bloomfield at SR 26 as well; the section between SR 26 and SR 145 was not a part of the state highway system at the time. By 1933, SR 260 extended east from SR 145 in Monroe County to the community of Marr.[6][7] Within the next two years, the route was extended south to Bloomfield and absorbed all of SR 245.[8][9] Since then, no major changes have taken effect on the routing.
^Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. 1925. Retrieved September 23, 2013.
^Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. 1926. Retrieved September 23, 2013.
^Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. 1932. Retrieved September 23, 2013.
^Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. 1933. Retrieved September 23, 2013.
^Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. 1934. Retrieved September 23, 2013.
^Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. 1935. Retrieved September 23, 2013.