Kentucky Route 79 originates at a junction with US 431

U.S. Route 431

U.S. Route 431 is a spur of U.S. Route 31. It currently runs for 556 miles from Owensboro, Kentucky at U.S. Route 60 to Dothan, Alabama, at U.S. Route 231 and U.S. Route 84. Through many parts of US 431 it is a two lane with not many places of it being a four lane highway.-Alabama:U.S. 431 is...

 in downtown Russellville

Russellville, Kentucky

As of the census of 2000, there were 7,149 people, 3,064 households, and 1,973 families residing in the city. The population density was 672.1 people per square mile . There were 3,458 housing units at an average density of 325.1 per square mile...

 in Logan County

Logan County, Kentucky

Logan County is a county located in the southwest area of the U.S. state of Kentucky. As of 2000, the population was 26,573. Its county seat is Russellville...

. The route continues through Morgantown

Morgantown, Kentucky

Morgantown is a city in and the county seat of Butler County, Kentucky, United States. The population was 2,544 at the 2000 census. The city had a sister city in Tatsuruhama, Ishikawa, Japan, which city is now part of Nanao, Ishikawa, Japan.-History:...

, Caneyville

Caneyville, Kentucky

Caneyville is a city in Grayson County, Kentucky, United States. The population was 627 at the 2000 census. The city was incorporated in 1880 and named for its location on Caney Creek.-Geography:Caneyville is located at ....

, Short Creek, Cannons Point, Harned, and Irvington

Irvington, Kentucky

Irvington is a city in Breckinridge County, Kentucky, United States. The population was 1,257 at the 2000 census. Founded in 1888, railroad engineer Eugene Cornwall named the city for his hometown of Irvington, New York.-Geography:...

, to terminate at the Ohio River

Ohio River

The Ohio River is the largest tributary, by volume, of the Mississippi River. At the confluence, the Ohio is even bigger than the Mississippi and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream...

 near Brandenburg

Brandenburg, Kentucky

Brandenburg is a city in Meade County, Kentucky, United States, along the Ohio River. The population was 2,049 at the 2000 census. It is the county seat of Meade County.-History:...

 in Meade County

Meade County, Kentucky

As of the census of 2000, there were 26,349 people, 9,470 households, and 7,396 families residing in the county. The population density was . There were 10,293 housing units at an average density of...

, where, after crossing the Matthew E. Welsh Bridge

Matthew E. Welsh Bridge

Matthew E. Welsh Bridge is a two-lane, single-deck continuous truss bridge on the Ohio River. The bridge connects Kentucky Route 79 and Indiana State Road 135, as well as the communities of Brandenburg, Kentucky and Mauckport, Indiana....

, it connects with State Road 135

Indiana State Road 135

State Road 135 in the U.S. State of Indiana is a road that connects Indianapolis with the Ohio River; for the most part it is a two-lane road.-Route description:The southern terminus is the Matthew E. Welsh Bridge on the east side of Mauckport...

 in Mauckport, Indiana

Mauckport, Indiana

Mauckport is a town in Heth Township, Harrison County, Indiana, along the Ohio River. The population was 81 at the 2010 census.-History:In the earliest times Daniel Boone and his brothers, most notably Squire Boone, were regularly in the area of Mauckport. Squire Boone settled in the area in 1806...

.

KY 79 provides access to Rough River Dam State Resort Park

Rough River Dam State Resort Park

Rough River Dam State Resort Park is a park located in parts of Breckinridge, Hardin, and Grayson counties in Kentucky. The park encompasses . Rough River Dam, stretching across and high, creates Rough River Lake, a recreational lake of approximately...

, a state park on Rough River Lake

Rough River Lake

Rough River Lake is a reservoir in Breckinridge, Grayson, and Hardin counties in Kentucky. It was impounded from the Rough River in 1959 by the United States Army Corps of Engineers. It is the primary attraction of Rough River Dam State Resort Park....

, at the Grayson

Grayson County, Kentucky

Grayson County is a county located in the U.S. state of Kentucky. It was formed in 1810. As of 2000, the population was 24,053. Its county seat is Leitchfield. The county is named for William Grayson , a Revolutionary War colonel and a prominent Virginia political figure...

 / Breckinridge

Breckinridge County, Kentucky

As of the census of 2000, there were 18,648 people, 7,324 households, and 5,309 families residing in the county. The population density was . There were 9,890 housing units at an average density of...

 County line.

While KY 79 begins at US 431 in Russellville, it currently does not touch the similarly-numbered US 79

U.S. Route 79

U.S. Route 79 is a north–south United States highway. The route is a northeast-southwest diagonal, with both east–west segments and north–south segments equally mixed. The highway's northern terminus is in Russellville, Kentucky, at an intersection with U.S. Highway 68 and KY 80...

, whose northern terminus is at Russellville.