What is powder keg silver dollar city?

Powder Keg is a roller coaster located at Silver Dollar City, a theme park in Branson, Missouri, USA. It is known for being one of the first coasters to use compressed air to launch the train from a standstill, much like a catapult. The ride reaches a top speed of 53 mph and features a 110-foot drop, two inversions, and multiple airtime hills. It opened in 2005 and was built by S&S Worldwide. The coaster is named after the powder keg, a type of explosive container used in mining during the 1800s when Silver Dollar City was a real mining town.