Roller coaster in the United States
Watch the on-ride POV
Silverwood Theme Park
Location Athol, Idaho, USA
Status Operating since May 15, 1999
Manufacturer Custom Coasters International
Designer / calculations Larry Bill
Type Wooden
Propulsion Chain lift hill
Height 85 feet
Elevation change 100 feet
Drop 99 feet
Top speed 50 mph
Length 3158 feet
Inversions 0
Duration 1:40
G-Force 2.5
Rolling stock
Manufacturer Philadelphia Toboggan Coasters

Tremors is a Custom Coasters International, Inc. wooden roller coaster at Silverwood Theme Park in Athol, Idaho, USA. The ride is semi-related to the film of the same name. It opened on May 15, 1999.[1]



Tremors features four underground tunnels, the first of which goes under the ride's gift shop.

In 2010, the ride was the first to receive "topper track," a new track system designed by Rocky Mountain Construction of Hayden, Idaho. The new system, similar to the companies new Iron Horse I-Box track system is designed to cut down on track maintenance, as well as daily wear and tear.


Single train with 6 cars. In each car, riders are arranged 2 across in 2 rows, for a total of 24 riders per train.



  1. Kramer, Becky (May 15, 1999). "First riders say Silverwood's Tremors is off the scale". The Spokesman-Review. p. 1. Retrieved January 22, 2021.

External links

  • Tremors on the Roller Coaster DataBase.

Articles on Silverwood Theme Park