Many of you probably don't know about or forgot this one, but it got huge press when it happened. Vail 1976 2 cars dropped, killing 4 and seriously injuring 8. What makes it particularly gripping is that one of the cars flipped on the way down, and the very heavy roof/linkage arm plowed through the car, essentially flattening the riders, much like a potato masher: Somehow Car 67, dangling by its thread of steel, stayed aloft. But Car 60 jumped off the line. Its wheel carriage remained attached to the car top. As it fell, the weight of the carriage tipped the car over and it landed upside down in the snow 23 feet up the hill from Car 25. The impact forced the carriage through the car roof, lethally battering the passengers on their heads just as they hit the ground.
Ironically, the fact that the cars hung over ungroomed/unpacked snow probably saved the other 8, providing a cushion of sorts - if they had dropped on packed or groomed ground, they would all most likely have died. But it made rescuing a nightmare - they had to wade through hip-deep snow.
Sports Illustrated wrote a pretty compelling story on it. It's not overly long, maybe 10 mins. https://vault.si.com/vault/1976/12/13/the-tragedy-on-gondola-ii