Question: Crush 'N' Gusher is a water coaster at a theme park that opened after after the closure of what in 2001?

Context paragraphs:
Wildebeest (ride): Wildebeest is a water coaster at Holiday World & Splashin' Safari in Santa Claus, Indiana, United States.  It was designed and built beginning in 2009 by ProSlide Technology; it opened on May 7, 2010.  "Wildebeest" is named after the African mammal, keeping with the water park's safari theme.  When it was completed in 2010, "Wildebeest" held the record for the world's longest water coaster at 1710 ft long.  It held that record until May 11, 2012, when Mammoth, Holiday World's second water coaster, took over the title at 1763 ft long.  In 2010, "Wildebeest" was voted the world's "Best New Waterpark Ride" at the Golden Ticket Awards, which are presented annually by "Amusement Today" magazine.  "Wildebeest" was also awarded the Golden Ticket Award for "Best Waterpark Ride" in 2010 and 2011.

Crush 'Em: "Crush 'Em" is a song by American heavy metal band Megadeth and the lead single from their eighth studio album, "Risk".  It first appeared on the soundtrack to "" in July 1999 and debuted as the third most added track on alternative rock stations on July 5.  Intended as a hockey anthem, "Crush 'Em" has become associated with sporting events and was heavily promoted by World Championship Wrestling.  The 2004 remastered edition of "Risk" includes the bonus track "Crush 'Em" (Jock Mix).

Disney's Typhoon Lagoon: Disney's Typhoon Lagoon is a water theme park located at the Walt Disney World Resort in Lake Buena Vista in Orlando, Florida and is one of two operating water parks at the resort.  It is the second water park to open at the resort after Disney's River Country, which closed in November 2001.

Theme Park World: Theme Park World, also known as Theme Park 2, and in North America as Sim Theme Park, is a 1999 construction and management simulation game developed by Bullfrog Productions and released by Electronic Arts.  The direct sequel to "Theme Park" ("Theme Hospital" and "Theme Aquarium" are thematic sequels), the player constructs and manages an amusement park with the aim of making profit and keeping visitors happy.  Initially developed for Windows, it was ported to PlayStation and PlayStation 2 (whose version was titled Theme Park Roller Coaster in North America), as well for Macintosh computers.  The Mac version was published by Feral Interactive.

Dash n Splash: Dash N Splash was a water theme park located in Chennai, India.  It has been operational since 1995 and is also the first exclusive water park in Chennai and South India.  The idea of opening the water park was get rid of heat, sweat & dust of the city.  The motto of the water park is Refresh Yourself.  Tamil Actor Suriya opened this theme park.  The park is fully shaded with coconut trees providing full refreshment and relaxation.  Dash N Splash has a number of water reservoirs and slides for adults, kids & senior citizens.  The park is now permanently closed.

Crush 'n' Gusher: Crush 'N' Gusher is a water coaster in Disney's Typhoon Lagoon on the Walt Disney World Resort property.

Storm Coaster: Storm Coaster is a Water Coaster located at the Sea World theme park on the Gold Coast, Australia.  The ride is designed by German firm Mack Rides and combines the flume and splashdown elements of a log flume, with the chain lift hill and drops of a steel roller coaster.

AquaDuck: AquaDuck is a water coaster (a water slide with similar turns, drops and g-forces to a roller coaster) that is located on the deck of two Disney cruise ships.  It was first constructed on the "Disney Dream" in January 2011 and then later on the "Disney Fantasy" in February 2012.  It was developed by Walt Disney Imagineers, and despite a few exceptions, is accessible to almost anyone.  The AquaDuck is the first water coaster to exist on a cruise ship, and so far it is the only one of its kind.

Mt. Olympus Water &amp; Theme Park: Mt. Olympus Water and Theme Park is a theme park and water park complex in Wisconsin Dells, Wisconsin.  Mt. Olympus consists of four areas of the park: Zeus' Playground (outdoor theme park), Neptune's Water Kingdom (outdoor waterpark), The Parthenon (indoor theme park), and Medusa's indoor water park.  In 2010 and 2011, the park purchased several smaller nearby independent motels and hotels and renamed them, painting them blue and white to fit the Greek theme for the main hotel.  Many other area hotels and motels offer free or reduced-priced tickets.

Mammoth (ride): Mammoth is a water coaster at Holiday World & Splashin' Safari in Santa Claus, Indiana, United States.  It was designed and built beginning in 2011 by ProSlide Technology; it opened on May 11, 2012.  "Mammoth" is named after the Mammoth, a now-extinct prehistoric mammal, keeping with the water park's safari theme.  When it was completed in 2012, "Mammoth" became the world's longest water coaster at 1763 ft long.  It claimed that title from Holiday World's first water coaster, "Wildebeest", which is 1710 ft long.

Supporting paragraphs: Crush 'n' Gusher Disney's Typhoon Lagoon
Answer: Disney's River Country