What amusement park that is privately owned seventeen miles north of Salt Lake City launched a steel roller coaster?
Cannibal (roller coaster):  Opened on July 2, 2015, the $22-million ride was built and designed mostly in-house – a rare move for an amusement park. Lagoon (amusement park): Lagoon is a privately owned amusement park in Farmington, Utah, United States, located about seventeen miles (27 km) north of Salt Lake City.
i don't know