Upon redesignation in 1926, Arkansas Highway 12 was the major east–west route of north Arkansas, running from Oklahoma to Ash Flat via Harrison. This AR 12 was a precursor to U.S. Route 62 in Arkansas, which supplanted AR 12 almost entirely in 1930.
In 1926, when Arkansas Highway 12 was reclassified, it became the major east–west route through north Arkansas, stretching from Oklahoma to Ash Flat via Harrison. This road precursor to U.S. Route 62 in Arkansas was largely supplanted by U.S. Route 62 in 1930.