The Orange County Register reports (http://bit.ly/YtNgUy ) Space Mountain reopened Friday evening.
The attraction was closed in April after state officials said safety rules were violated when a contractor fell and suffered broken bones while cleaning Space Mountain's slanted roof.
The contract company was fined nearly $61,000 for the safety violations. The California Division of Occupational Safety and Health proposed a nearly $235,000 penalty against Disney in connection with the contractor's injury.
Disney did not appeal by Friday's deadline, but the company said it continues to meet with the state agency about the citations.
Disney closed two other rides—the Matterhorn Bobsleds in Disneyland and Soarin' Over California in Disney California Adventure—to evaluate the safety of employees who maintain them.
Both attractions have reopened.