[1] Originally, the park included a small assortment of carnival rides, a "main street" with shops and eateries, and an authentic steam train that traveled in a 30-minute loop around the owner's property.

From 1973 to 1988, the land, along with a fully functioning airstrip, was operated as the Henley Aerodrome, named after the family whom Norton bought it from in 1981.

In 2009, Silverwood began an annual Halloween event called Scarywood, held during evenings in the month of October.

Today, Silverwood is the largest theme and water park in the American Northwest on 413 acres (167 ha) and boasting more than 70 rides, slides, shows, and attractions.

[5] In 2009, Silverwood opened Scarywood Haunted Nights, a nighttime fright fest filled with scare zones and mazes.