Originally posted by Dr Albert Falls
For the most part, the two attractions are very similar.
The queues are different. DL has no mining village during the ride (but it IS set up along the outdoor queue).
There is no "derail" effect-- but there is the 3rd lift with the "avalanche scene" that gives the appearance of a broken track--just like at WDW. (I wonder if that's what one of the injured guests saw when she reported to the LA Times seeing the track broken.)
In 1997, Disneyland upgraded its "avalanche scene". They removed the cheesy rocks-on-a-stick. The cavern had a little bit of smoke. They projected some of the "falling rocks". And I believe they even had a few boulders drop from the ceiling, attached to cords. Most notably, they created a very cool effect with fiber optics that made it appear like gold was trickling down the wall.