With just over a month to go until Big Thunder Mountain Railroad finally reopens at Magic Kingdom Park, part of the Frontierland roller coaster is already functional. This comes days after Walt Disney Imagineers were spotted testing the geyser features on the shuttered attraction.Big Thunder Mountain Railroad OverhaulBig Thunder Mountain Railroad closed in January 2025 for its most intensive overhaul ever. Walt Disney World Resort initially shared that the Magic Kingdom Park ride would reopen with “new magic” sometime in 2026, and has gradually released more information about the reimagining over the last 15 months. The retheme includes an all-new Rainbow Caverns scene with shimmering stalagmites, phosphorescent pools, and new audio-animatronic bats.Credit: DisneyCentral Florida Disney Park guests watched as crews replaced all of the steel roller coaster’s tracks, refreshed set pieces, and installed new, freshly painted trains. Work continues in the queue area and at the entrance to Big Thunder Mountain Railroad.Walt Disney World Resort has said that the Frontierland attraction will reopen sometime in early May 2026, but hasn’t confirmed an exact date.Latest Testing in FrontierlandCredit: DisneyOn April 8, WDWNT reported that two large pipes protruding from a queue building for Big Thunder Mountain Railroad had been seen spitting steam. The outlet shared this photo of the structure on Facebook, explaining that it had also recently been repainted:It’s unclear whether the steam effect will remain on until Big Thunder Mountain Railroad reopens in May, or if Walt Disney Imagineers were just testing it this morning. Construction walls still surround much of the entrance to the Frontierland attraction, many of which will remain in place after it opens as Imagineers continue building the Cars (2006)-inspired Piston Peak National Park in the former location of Tom Sawyer Island and the Rivers of America.Credit: DisneyInside the Magic will continue tracking the progress of the Frontierland roller coaster reimagining and report as soon as Walt Disney World Resort announces an exact reopening date.Have you noticed any other changes around Big Thunder Mountain Railroad at the Magic Kingdom? Share your experience with Inside the Magic in the comments! The post Big Thunder Mountain Railroad Attraction Returns to Magic Kingdom Weeks Ahead of Schedule appeared first on Inside the Magic.