Tenth version of Kennywood's 1901 Old Mill ride.
The scenes of the previous version "Hard Headed Harold's Horrendously Humorous Haunted Hideaway" largely remained, though the façade and ride name were changed to Old Mill in 1993. During the 1990s, some more scenes were added to the ride by Frank Fruscillo.
- Old Mill (1901-1906)
- Panama Canal (1907-1911)
- Old Mill Rapids Gorge (1912-1914)
- Old Mill (1915-1916)
- Fairyland Floats (1917-1920)
- Tour of the World (1921-1925)
- Old Mill (1926-1956)
- Old Mill (1957-1973)
- Hard Headed Harold's Horrendously Humorous Haunted Hideaway (1974-1992)
- Old Mill (1993-2003)
- Garfield's Nightmare (2004-2019)
- Old Mill (2020-present)
The ride system is still in operation today, making it one of the oldest dark rides in the world.