What is smoky mountain rain?

"Smoky Mountain Rain" is a popular country song written by Kye Fleming and Dennis Morgan, and performed by Ronnie Milsap. The song was released in 1980 and was Milsap's 16th No. 1 hit on the Billboard Hot Country Songs chart. The song is about a man who returns to the Smoky Mountains in Tennessee to get over a heartache, but finds that the rainy weather and memories of his lost love only intensify his feelings. The song features a memorable piano intro and chorus, and has been covered by numerous artists over the years. The song was a commercial success, earning a Gold certification from the RIAA, and has become an enduring classic in the country music genre.