The group American Coaster Enthusiasts has named the Thunderbolt a "Coaster Landmark" — the third roller coaster to be so recognized at the Kennywood amusement park near Pittsburgh.
Kennywood is now the only park in the United States with three coaster landmarks.
The group founded in 1978 has honored 30 coaster landmarks nationwide since 2002.
Kennywood's Jack Rabbit and Racer roller coasters were previously honored as landmarks by the group. All three are traditional roller coasters with wooden frames and tracks.
The Thunderbolt grew out of a former roller coaster known as the Pippin. The Pippin was built in 1924 and was expanded and rebuilt to become the Thunderbolt in 1968.
The Jack Rabbit was built in 1920 and the Racer in 1927.