Kentucky Route 255 (KY 255) is a 16.977-mile-long (27.322 km) south-north state highway located in south central Kentucky. It provides access to Interstate 65 and Mammoth Cave National park to residents of southern Barren County.
Entrance of Mammoth Cave National Park at KY 255's northern terminus near the Sand Cave
This Kentucky Scenic Byway sign on KY 70 points to KY 255's final segment, which leads to Mammoth Cave National Park.
U.S. Route 68 is a United States highway that runs for 560 miles (900 km) from northwest Ohio to Western Kentucky. The highway's western terminus is at US 62 in Reidland, Kentucky. Its present northern terminus is at Interstate 75 in Findlay, Ohio, though the route once extended as far north as Toledo. US 68 intersects with US 62 three times during its route.
US 68 in Mercer County, Kentucky
The Beginning of US 68 at an intersection with US 62 near Paducah, KY
Highest point on US 68 at the US 33 interchange in Bellefontaine, Ohio