Question: What amusement park that is privately owned seventeen miles north of Salt Lake City launched a steel roller coaster?
Sentence (from "Lagoon (amusement park)"): It has ten roller coasters, five of which are unique; "Colossus the Fire Dragon", the last Schwarzkopf Double Looping coaster still in operation in the United States (Laser at Dorney Park closed at the end of the 2008 season and was moved to Germany to become the Teststrecke traveling roller coaster in 2009); Roller Coaster, one of the oldest coasters in the world operating since 1921; Wicked, designed by Lagoon's engineering department and Werner Stengel in cooperation with ride manufacturer Zierer; BomBora, a family coaster designed in-house; and Cannibal, built in-house with one of the world's steepest drops.
Relevant evidence: No