From the Disney Parks Blog:
Today we have an exciting update on Big Thunder Mountain Railroad at Magic Kingdom Park to share with you: Walt Disney Imagineering just sent us a “first look” inside the new interactive queue that’s currently being added to the Frontierland attraction.
In the video, Project Manager Wyatt Winter and Creative Designer Pete Carsillo offer up a behind-the-scenes tour of the new queue, which builds on the attraction’s backstory of Barnabas T. Bullion, founder and president of Big Thunder Mining Company. The storyline of the new area builds the attraction into something that takes guests deeper into the mining days of the Wild West. When the finished queue debuts in a few weeks, guests will be able to explore the mountain’s Mining Office, the Explosives Magazine Room, and maybe even get a little hands-on by doing some of the miners’ activities.