In 2016 Big Thunder Mountain was closed for 1 year, there was a big refurbishment, they repainted the entire mountain structure, refurbished the tracks and effects and they added a new effect on the last lift hill.

There is now visual effects for the explosions and smoke effects, the smoke effects don't seems to work that often since the reforms, so maybe they will put some more work into that very soon.

In this video you see what happened during the refurb of 1 year

 

In this next video you will see the first ride when it reopened again and some wonderfull views around Big Thunder Mountain