LAKEWOOD, Colo. (CBS4) – The creators of South Park are prepared to buy Casa Bonita in Lakewood. The effort to save what some would call a Colorado institution will cost Trey Parker and Matt Stone $3.1 million, according to bankruptcy documents.

Fans of Casa Bonita attend a rally outside Casa Bonita on April 24. (credit: Evan Semón/CBS)

The restaurant on Colfax Avenue filed for bankruptcy earlier this year.