US 68 is signed east–west in
Kentucky, while in
Ohio it is signed north–south.
Kentucky U.S. Route 68 is designated as a "Scenic Highway" throughout Kentucky. US 68 passes near or through
Reidland,
Aurora,
Cadiz,
Hopkinsville,
Elkton,
Russellville,
Auburn,
Bowling Green,
Glasgow,
Edmonton,
Greensburg,
Campbellsville,
Lebanon,
Perryville,
Harrodsburg,
Lexington,
Paris, and
Maysville. The majority of the route winds through forested, hilly terrain. US 68 is Broadway through downtown Lexington, and it is Harrodsburg Road before it leaves Lexington. The route passes several
Civil War battle sites. The
Jefferson Davis State Historic Site is located along the highway, approximately east of Hopkinsville at the small town of
Fairview. The
Battle of Tebbs Bend Historic Civil War Site is located near Campbellsville and the
Perryville Battlefield State Historic Site is outside Perryville. There is an annual
yard sale, held along the highway for four days in early summer. The sections of the highway through Campbellsville and Lebanon are slated for expansion to begin in 2008. The long-term goal is to widen and make safer the entire US 68 corridor through Kentucky as part of the Heartland Parkway project. Sections in Kentucky have been improved in recent years. The
Paris Pike was completed in 2003. Work is currently in progress to make US 68 four lanes through Land Between the Lakes. This was accelerated, following a devastating collision of the cargo vessel
MV Delta Mariner with
Eggner Ferry Bridge in January 2012.
Ohio interchange in
Bellefontaine, Ohio US 68 takes a south–north route throughout Ohio, roughly paralleling Interstate 75 but covering counties one tier to the east of those counties covered by I-75. US 68 begins at the
William H. Harsha Bridge over the
Ohio River and is immediately concurrent with
US 52 and
US 62 for while traveling on the north bank of the river. US 52 leaves the concurrency at
Ripley, at which point US 68 and US 62 head north for as a generally rural two-lane highway. In
Brown County's
Jefferson Township, near
Redoak, US 62 leaves the concurrency. Afterward, US 68 passes through or bypasses communities such as
Georgetown,
Mount Orab,
Fayetteville,
Wilmington,
Xenia, and
Yellow Springs. Shortly before reaching
Interstate 70, it becomes a four-lane expressway, bypassing
Springfield before transitioning back to a rural two-lane road as it approaches
Urbana. As it continues north, US 68 passes through
West Liberty,
Bellefontaine,
Kenton,
Dunkirk, and
Arlington on its way north to its terminus at an interchange with
Interstate 75 outside
Findlay. Near Redoak in Brown County, the designation "Brigadier General Charles Young Memorial Historical Corridor" leaves the US 62/US 68 concurrency and joins US 68 solely at the routes' junction. The designation is in honor of
Young, a pioneering figure in US history, and at his death, the highest-ranking Black officer in the
Regular Army. The memorial historical corridor stretches northward to Xenia, where it leaves US 68 and joins
US 42 at the junction of those routes. In total, US 68 traverses 179.1 miles within Ohio. ==History==