The highway then heads northeast through rural farmland to have an intersection with SR 81 just before passing through Sulphur Springs.

The current SR 75 is the third state highway in Tennessee to bear this numbering.

The first alignment was one of the original state highways established on October 1, 1923, and ran between Springfield to the Kentucky line along what is now US 31W.

This site consists of fossils from the early Pliocene era that are between 4.5 and 4.9 million years old.

[5] A widening project has been taking place on SR 75 to provide a four-lane highway from Interstate 26 in Gray to the Tri-Cities Regional Airport in Blountville.