The Fantasyland section of the Magic Kingdom underwent a large expansion and renovation from March 2010 through May 2014.
As part of the expansion, the Magic Kingdom's original Snow White attraction, Snow White's Scary Adventures, was permanently closed on May 31, 2012 and replaced with Princess Fairytale Hall, a new Disney Princess meet and greet. A new area themed to Snow White and the Seven Dwarfs, featuring Snow White's cottage and the new the Seven Dwarfs Mine Train roller coaster, was dedicated on May 2, 2014 and officially opened on May 28, 2014.
The ride soft-opened in the Magic Kingdom on May 21, 2014, fully opening a week later on May 28, 2014.
The queue hosts a few interactive activities. One is a gem-sorting game where you match up three jewels of different shape but the same color. There is also a spot with barrels full of gems that you spin to create reflective animations of the Seven Dwarfs on the ceiling. If all of the dwarfs are present on the ceiling, an animation of Snow White appears in the middle of the Dwarfs' animations. Finally there are the "musical spigots," a gem washing station with wooden taps carved to woodland animals. There are 12 spigots each representing a note on the chromatic scale.
Songs from the film, such as Heigh-Ho, are featured in the attraction. Most of the Audio-Animatronics, including the Dwarf figures of Doc, Happy, Sleepy, Grumpy, and Bashful performing their Yodel Song in the final scene are recycled from the demolished Snow White's Scary Adventures attraction. Additionally, the vulture figures from the previous attraction ride are perched on a mining structure early in the ride. Many of the figures within the cave are new designs from the animation team, with the most important and recognizable contribution being Doc's high range of motion, two degree-of-freedom wrist—a former intern project that invigorated the hopes and ambitions of countless intern generations to follow.
The ride features two on-ride cameras that provide videos and pictures for guests to buy through Disney's Photopass, which it began doing on September 18, 2014. It is one of only two Walt Disney World attraction to provide videos for guests, the other being The Twilight Zone Tower of Terror. Unlike the rest of the rides at Walt Disney World with on-ride cameras, there are no monitors after the ride to view the pictures and there is no store to buy the pictures in.
On November 1, 2014, falling embers from Wishes fireworks show landed on the fake grass exterior of the ride, causing a fire near the bridge that the coaster travels on just before entering the mine. This caused the ride and the area around it to be evacuated. The fire was first reported around 10:20p.m. Reedy Creek Fire Department responded and extinguished the fire within minutes, according to eyewitnesses. By 11 p.m., multiple eyewitnesses said the fire was out. There were no injuries reported. The area around it reopened later that night and the ride reopened at 12:30 a.m. that same night.