The Seven Dwarfs Mine Train, the last piece of the Fantasyland expansion at Magic Kingdom, was dedicated Friday morning, but the ride won’t open to the public until May 28.

Tom Staggs, chairman of Walt Disney Parks and Resorts, announced the opening date during a dedication ceremony in which Snow White and Dopey wielded a golden pickaxe “forged” by the Seven Dwarfs to set off fireworks.

There was no immediate word on whether parkgoers would be able to ride during the next month, as sometimes happens with “soft openings” of new attractions.

The ride is up and running — members of the media rode it during a preview event on Thursday.

The mine train is a roller coaster that runs outside, then inside the mine where audio-animatronic dwarfs gather sparkling gemstones and sing Heigh-Ho from the 1937 movie, Snow White and the Seven Dwarfs (“Heigh-ho, heigh-ho, it’s off to work we go”). Riders sit in cars that sway back and forth through the turns.

Staggs described the coaster as the centerpiece of the Fantasyland expansion, which also includes several attractions that opened over the last two years –Under the Sea: Journey of the Little Mermaid, Enchanted Tales with Belle, the Be Our Guest Restaurant in the castle of the Beast, and Princess Fairytale Hall, an elaborate setting for meet-and-greets with the Disney princesses.

In addition, some older attractions were revamped with a circus theme, and include a second Dumbo ride, the retheming of the Barnstormer junior coaster, and the Casey Jr. Splash ‘N’ Soak Station. ___

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Photo Credit: Disney's Seven Dwarfs Mine Train is up and running. Ricky Brigante /