Vortex was a stand-up roller coaster that officially opened on March 9, 1991, as the second coaster from the company Bolliger & Mabillard following Iron Wolf at Six Flags Great America. Although the layout differs, Vortex is generally the same size as its namesake, Vortex, located at sister park Carowinds in Charlotte, North Carolina. As the ride had gotten rough with age and wasn't particularly smooth anymore, it made a good conversion candidate to improve the experience in the space constrained park. At the time of closing, on September 5, 2016, the coaster had a paint scheme of purple track with yellow rails and gray supports.
Patriot (2017–present)
On August 18, 2016, the park announced Vortex would be converted to Patriot for the 2017 season, including new Bolliger & Mabillard floorless trains and a new color scheme consisting of blue track and white supports. Although this is the first floorless coaster in the park’s 41-year history it is the second floorless conversion in the Cedar Fair chain, following Mantis turning into Rougarou at Cedar Point back in 2015. The park opened on Saturday, March 25 for the 2017 season, with Patriot opening to the public the following Saturday on April 1. In celebration of the opening of the coaster, the park offered free entry to all current and past military service members through Memorial Day weekend with up to 6 of their guests being offered discount tickets. Season pass holder previews were announced to start on March 31, 2017, a day before the official opening of the ride. When looking at the :File:Patriot Logo, California's Great America, 2017.png|logo of the ride, it closely resembles the :File:Patriot Roller Coaster Logo.jpg|logo of its namesake, Patriot, which is located at the Worlds of Fun amusement park in Kansas City, Missouri, which also forms part of the Cedar Fair chain of amusement parks.
The coaster takes riders to a 91-foot height after which it makes an initial left hand drop into its first loop. It then executes a left turnaround to travel into another left turnaround through its loop. The train then travels to the other end of its layout into the corkscrew element and another left turnaround after which it enters into the final brake run. The course used to cross over the park train's railroad tracks by the corkscrew. The coaster's lift hill stands parallel to the footers of the former Tidal Wave looping shuttle coaster.