There are two entrances to Savage Gulf, and each has a ranger station.
The Savage Gulf Entrance- From Dunlap, follow TN 8/111 to a left turn onto TN 399. The entrance will be a few miles down on the right.
The Stone Door Entrance- From McMinnville, follow TN 56 to Beersheba Springs. Turn left on a side road marked with a state park sign and follow it to a fork. Bear right to the entrance/ranger station.
To get to the base of the routes, scramble down through the Door to the bottom.