Second version of Kennywood's 1901 Old Mill ride.
- 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.
Panama Canal got damaged by fire in 1911. Remodeling of the ride resulted in the Old Mill Rapids Gorge, opening in 1912.