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Big Thunder Mountain Sets Spring 2026 Return With New Trains, Reimagined Caverns

Fresh Imagineering details signal the overhaul’s final phase.

Overview

  • On Good Morning America, Imagineer Wyatt Winter confirmed all-new trains, refreshed Audio‑Animatronics, and the return of long‑dormant effects.
  • An updated Rainbow Caverns scene will feature phosphorescent pools, iridescent rock formations, and hundreds of bats before the mountain appears to push back at riders.
  • For the first time, gold‑themed props will appear throughout the mountain as the story shifts to depict active mines run by the Big Thunder Mining Company.
  • Coverage of the year‑long project notes full track replacement as part of a top‑to‑bottom refurbishment aimed at reliability and show quality.
  • Disney has not announced an exact date, but the attraction’s reopening window remains spring 2026 at Magic Kingdom.