ATHOL, Idaho — Silverwood's 'Tremors' roller coaster re-opened to the public Saturday, May 31, after closing the ride for construction since February of this year. The roller coaster first ...

In 1930, the park rehired PTC, as well as Schmeck to redesign the coaster. ... this fan favorite continues to show what a classic American wooden roller coaster was like back in the early 1900s.