ATHOL, Idaho - One of the beloved wooden roller coasters at Silverwood Theme Park is getting a big upgrade this summer! Silverwood announced a "seismic upgrade" to Tremors, a wooden coaster that ...
Silverwood Theme Park has announced an upgrade to one of its most iconic attractions—Tremors. The top-rated wooden roller coaster, which has thrilled guests since 1999, will undergo a seismic ...
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