Logan County KY 79 starts at an intersection with
KY 3519, an old alignment of
US 431, Main Street in downtown
Russellville, while
US 79's end is currently at an intersection with
US 68 and
KY 80 on the eastern side of Russellville. KY 79 has an intersection with the four-lane divided US 68/KY 80 alignment. The two routes once met at the intersection of Main Street and Ninth Street, which carried the US 79 route to US 68 before the bypass. KY 79 climbs the Dripping Springs Escarpment onto the Mammoth Cave Plateau a few miles northeast of Russellville and traverses northeastern
Logan County, with intersections with KY 1038 and KY 2377.
Butler County After entering Butler County, KY 79 enters the
Western Kentucky Coalfield and has intersections with
KY 626 in Davis Crossroads and
KY 1153. It then joins into a
concurrency with US 231 just south of
Morgantown; the two routes go into downtown Morgantown shortly after their interchange with
I-165, the former William H. Natcher Parkway, and then meets KY 403 in downtown, and then KY 70 on the north side. KY 70 joins KY 79 and US 231 and all three routes are carried over the Green River from Morgantown to
Aberdeen. KY 79 departs at the Aberdeen Grocery, but KY 70 does not break up until reaching an intersection one mile north on US 231. After the split from US 231 and KY 70, KY 79 has an intersection with KY 1328 not more than from the split from US 231. Kentucky Route 79 crosses KY 70 for a final time, and becomes known as Caneyville Road. KY 79 passes through Butler County's northern communities of Welcome and
Welch's Creek where it meets KY 340.
Grayson County After KY 79 enters
Grayson County and has access to the
Wendell H. Ford Western Kentucky Parkway on the south side of
Caneyville and intersects
KY 185 at that route's northern terminus, adopting its northerly direction, and immediately afterward crosses
US 62 in downtown Caneyville. KY 79 then goes north towards
Pine Knob, leaving the coalfield, and passes through
Short Creek, where it intersects
KY 54 then goes through the developed portion of
Falls of Rough, and
Rough River Dam State Park.
Breckenridge and Meade Counties While traversing Rough River Dam, KY 79 crosses into
Breckinridge County, where it intersects with KY 105, and then meets up with KY 259. KY 79 joins KY 259 from the lake area until they both reach the intersection with
U.S. Highway 60 at Harned, southeast of
Hardinsburg. While KY 259 makes a left turn to join US 60 westbound, KY 79 turns onto eastbound US 60, and stays with US 60 until reaching Irvington, where KY 79 enters Meade County, and heads for Brandenburg. On the southwest side of Brandenburg, KY 79 ends at an intersection with KY 313 and KY 448. The route once went to the nearby Ohio River bridge, but that was superseded with the completion of KY 313, the Joe Prather Highway, through Meade County. ==History==