Silverwood Theme Park, Amusement park in Athol, United States

Silverwood Theme Park is an amusement facility in Athol, Idaho, covering a forested area with more than 70 rides distributed across multiple zones, including four roller coasters and a dedicated water park called Boulder Beach. The grounds combine traditional carousel-style attractions with modern high-speed installations and offer separate areas for different age groups and intensity levels.

An entrepreneur named Gary Norton opened the facility in 1988 on a former airfield site, beginning with carnival rides and a historic steam locomotive. Over the following decades, he gradually expanded the offerings to include larger roller coasters and a separate water area.

Each October since 2009 the park has run Scarywood Haunted Nights, an evening event of scare zones and mazes. Its attractions have included Blood Bayou, an indoor haunt, the outdoor Chuckles 3D Sideshow and Timber Terror run backwards; Pharaoh's Curse was added in 2021 and The Swine in 2024. The event was cancelled in 2020, though the park stayed open October weekends without the scary theming.

Silverwood lies near Athol in northern Idaho, about 47 miles (76 km) from Spokane, Washington, on US 95. Boulder Beach Water Park adjoins the theme park, and entry to it is included with Silverwood admission. Scarywood runs on October evenings; in 2020 it was cancelled over Covid-19 concerns, though the park stayed open October weekends without the scary theming.

The park occupies land that was the Henley Aerodrome from 1973 to 1988, a working airstrip named after the family Gary Norton bought it from in 1981. The steam train that circles the property on a 30-minute loop is a holdover from the site's early years, when the grounds still had a runway.